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CONTENT, S.No, , Pages, , 1., , DPP-1, , 04 – 05, , 2., , DPP-2, , 06 – 09, , 3., , DPP-3, , 10 – 12, , 4., , DPP-4, , 13 – 14, , 5., , DPP-5, , 15 – 18, , 6., , DPP-6, , 19 – 23, , 7., , DPP-7, , 24 – 25, , 8., , DPP-8, , 26 – 27, , 9., , DPP-9, , 28 – 30, , 10. DPP-10, , 31 – 34, , 11. DPP-11, , 35 – 38, , Let's Crack it !, , Join with code "SKSIRLIVE" for 10% discount on your unacademy subscription., , Page # 3
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5., , Number of groups showing –I effect :, , , (A) NH3, , (B) –NH2, , (C) –COOH, , (D) –OCH2CH3, , (e) –CH=CH2, , (f), , (g) –SO3H, , (h), , O, , C, , CH3, , O, , (i) –O–, 6., , Which of the following statement is CORRECT regarding the inductive effect?, (A) electron-donating inductive effect (+I effect) is generally more powerful than electron-withdrawing, inductive effect, (B) it implies the shifting of electrons from more electronegative atom to the lesser electronegative atom, in a molecule, (C) it implies the shifting of electrons from less electronegative atom to the more electronegative atom in, a molecule, (D) it increases with increase in distance., , 7., , Which order of I effect is correct., , , (A) NH3 NO2, (B) –OH > –Cl, 8., , [–I], [–I], , Minimum –I effect exerted by the group, (A) –OH, (B) –OCH3, , (B) –NH2 > –NHCH3, (D) –CD3 > –CH3, , [–I], [+I], , (C) –NH–CH3, , (D) –NH2, , , , 9., , –OH, S R2, –Br, –CN, I, II, III, IV, Among these groups, which of the following orders is correct for the magnitude of their -I effect?, (A) IV > II > III > I, (B) II > IV > I > III, (C) II > III > IV > I, (D) II > IV > III > I, , 10., , Which of the following statements is INCORRECT about inductive effect?, (A) Inductive effect is distance dependent and decreases drastically on increase in distance., (B) Inductive effect is transmitted through -bond., (C) Inductive effect is transmitted through -bond, (D) Inductive effect is permanent effect, , 11., , In which of the following species, INCORRECT direction of Inductive effect is shown?, CH3, , (A) CH3, , C, , , , CH3, , (B) CH3, , CH3, 3, , 12., , (C) CH3, , C, , CH3, , CH3, , 2, , C, , CH3, , CH3, , (D) CH3, , N, , , , CH3, , CH3, , 1, , In which C C bond of CH3 CH2 CH2 Br , the inductive effect is expected to be the least., (A) C1 C2, , (B) C2 C3, , (C) C1 Br, , (D) All are same, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 5
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ORGANIC CHEMISTRY, Daily Practice Problems, Class : XIII, , 1., , Target IIT-JEE, Time : 30 min., , DPP # 2, , Which of the following pairs are resonance structures of each other ?, O, H3C, , C, , CH3, , H3C, , CH2, , (II), , (I), , (IV), , , , (III), , (A) I, II, III, 2., , OH, , (B) I, IV, , , , (c) II, III, , (D) I, III, IV, , (C) 4, , (D) 5, , (C) 4, 0, , (D) 5, 5, , (C), , (D) None of these, , Total number of resonating structure is :, CH3, , , (A) 2, 3., , (B) 3, , Number of resonating structure possible in, , NH3, , NH2, , &, , (A) 2,2, 4., , (B) 5,2, , Which is not the resonating structure of, , , , , , (A), , (B), , , , , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 6
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5., , How many resonating structure is possible of be following, O, , (A) 8, 6., , (B) 9, , (C) 10, , (D) 11, , In which of the following the lone pair of N atom do not participate in resonance ?, O, , N, , NH, , (A), , (B), O, N, , O, NH, , (C), , 7., , CHO, , (D), , Number of resonating structures of the given compound are :, CHO, , (A) 3, 8., , 9., , (B) 5, , Which molecule doesn’t show resonance, (A) O=C=O, (B) CH2=C=CH2, , (C) 6, , (D) 7, , (C) CH2=C=O, , (D) CH2=C=C=CH2, , Which of the following is/are resonating structure of, O, , Phenoxide ion, , (A), , 10., , O, , O, , O, , (B), , (C), , O, , (D), , Which one is resonating structure, H, , O, , O, , O, , O, , H, , (A), , (B), , (C), , (D) , , , , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 7
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11., , Which of the following is not resonating structure of each other ?, O, , O, , (A), , OH, , O, , O CH3, , OCH3, , (B), O, , , , (C), , (D), , , 12., , O, , List-I, , List-II, , (Compound), , (Number of resonating structure), OH, , (P), , (1) 4, , (Q), , (2) 9, , (R), , (3) 10, , OH, , (S), , (4) 5, , Codes :, P, , Q, , R, , S, , (A), , 3, , 2, , 1, , 4, , (B), , 4, , 3, , 2, , 1, , (C), , 2, , 1, , 4, , 3, , (D), , 1, , 2, , 3, , 4, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 8
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13., , Number of resonating structures of phenol are, OH, , 14., , Identify the number of resonating structure which are correct ?, O, , (i) CH 2, , CH2, , CH 2, , O, , (iii) CH 3 C, , CH2, , (ii) CH2 N, , CH 3 C, , O, , , Cl, , O, O, , O, CH3 N, , Cl, Br, , Br, O, , (v), , O, , (iv), , (vi), , , , 15., , Number of resonating structures of given compound are :, , 16., , The number of resonance structures of N is, , , , OH, NaOH, , N, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 9
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , Time : 30 min., , DPP # 3, , Most stable resonating structure of the given cation is, , CH2, , OMe, , , , , , (A), , (B), , (C), , (D), , , OMe, , 2., , , OMe, , OMe, , OMe, , Which of the following resonance structure contributes the most to the resonance hybrid?, OCH3, , OCH 3, , , OCH3, , OCH3, , , (A), , (B), , , 3., , (C), , (D), , , , Among the following, the least stable resonance structure is, , , (A), , O, N, , (B), , O, , (C) , , O, N, O, , , , O, N, O, , (D) , , O, N, O, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 10
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O, , 4., , For, , which of the following resonating structure is least stable., , O, , O, , , 5., , (B), , , CH2 N, (II), , N, , (A) II > I > IV > II, , (D), , , , N, , CH2 N, (III), , , N, , , CH2 N, (IV), , (B) I > II > IV > III, , N, , (C) III > II > IV > I, , (D) IV > II > III > I, , Relative stability of resonating structure is :, O, CH3 C, , O, , H, CH3, , (a), , , O, O, O, , C OH , CH3 C OH , CH3 C, (b), , (A) (a) > (b) > (c) > (d), 7., , (C), , Arrange the following diazomethane (CH2N2) in order of stability –, , CH2 N, (I), , 6., , , , , , (A), , O, , O, , (c), , , O, , H, , (d), , (B) (b) > (c) > (a) > (d), , (C) (d) > (a) > (b) > (c), , (D) (a) > (d) > (b) > (c), , Correct order of stability is, , OH, , O, , (A), , , OH, , O, , (B), , ; II > I, , CH2, , ; II > I, (I), , , (C), (I), , 8., , (D), , ; I > II, , ; I > II, , (I), , , (II), , (II), , Decreasing order of stability among the Resonance Structures is, O, , (A) (I) > (II) > (III), , O, , (B) (III) > (II) > (I), , O, , (C) (II) > (I) > (III), , (D) (II) > (III) > (I), , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 11
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9., , Which is the correct stability order of different resonating structures of carbamic acid (NH2–COOH), H2N, , C, , (I), , , , OH, , , , (A) II > IV > III > I, , H2N, , C, , O, , O, , O, , O, , , , , OH, , , (II), , (B) II > III > IV > I, , , H2N, , , , C, , OH, , , , (III), , (C) II > I > III > IV, , , H2N, , C, , , OH, , , (IV), , (D) II > I > IV > III, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 12
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ORGANIC CHEMISTRY, Daily Practice Problems, Class : XIII, , 1., , Time : 30 min., , DPP # 4, , Which of the following is the most stable alkene ?, , (A), , 2., , Target IIT-JEE, , (B), , (C), , (D), , number of -H in the given compound are, , N, N, H, , (A) 2, , 3., , (B) 5, , (C) 7, , (D) 8, , Which carbocation has inductive, hyperconjugation and resonance effect present, , (A), , (B), , (C), , (D), , 4., , Find the number of “no bond resonance structure“ of acetonitnile (CH3–C N), (A) 3, (B) 4, (C) zero, (D) 6, , 5., , Identify the carbocation in which inductive effect, hyperconjugation and resonance are present, , , , , (A), , (B), , , , , (C), , (D), O, , 6., , X = Total number of –hydrogen in the below compound ?, , Find value of X ?, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 13
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , Time : 30 min., , DPP # 5, , Which of the following is not aromatic compound, OH, , O, , (A), , (B), , S, , (C), , (D), , B, H, , 2., , Which of the following compound is Non aromatic, O, , O, O, , (A), , (B), , (C), , (D), O, , O, , 3., , Which of the following is unstable at room temperature ?, O, , , , (A), , (B), , OH, , (C), , B, , (D), , H, , 4, , Which of the following is an Anti –Aromatic species ?, , (A), , 5., , (B), , (C), , (D), , Which of the following is not aromatic ?, , (A), , (B), , (C), , (D), , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 15
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6., , Which one of the following compound is not aromatic ?, O, , O, , (A), , (B), O, , 7., , (C), , (D), , , , Which of the following is not aromatic compound ?, OH, , O, , (A), , S, , (B), , (C), , (D), , B, H, , 8., , Which of the following is not aromatic compound ?, Et, , OH, , O, , (A), , S, , (B), , (C), , (D), , B, H, , 9., , Among the following the homocyclic aromatic compound is, , (A), , (B), , (C), , (D), , N, , 10., , Which structure is correct for cyclooctatertraene ., , (A), , (B), , (C), , (D), , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 16
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11., , Identify compounds which is most stable at room temperature, O, , N, , (A), , 12., , (B), , (C), , Which compounds is/are aromatic, NH, , O, HN, , NH, , (A), , (B), O, , 13., , (D), , NH, , (C), , (D), , O, , Which of following compound/s are unstable ?, O, , O, , (A), , 14., , (B), , (C), , (D), , Which compound is unstable at room temperature ?, O, , O, , (A), , (B), , (C), , (D), O, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 17
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15., , List -I, , List -II, , (P), , (1) Non aromatic, O, , (Q), , (2) Aromatic, , , , (R), , (3) Don’t undergo resonance, , (S), , (4) Anti aromatic, NH2, , Codes ;, P, , Q, , R, , S, , (A), , 3, , 2, , 1, , 4, , (B), , 4, , 3, , 2, , 1, , (C), , 2, , 1, , 4, , 3, , (D), , 2, , 4, , 1, , 3, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 18
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , Time : 30 min., , DPP # 6, , In which of the following compounds Bredt's rule is NOT violated ?, , , N, , , , (A), , 2., , (B), , (D), , H, , , , Compare the stability of carbocation, , , , , (I), , (II), , (A) III > II > I, 3., , (C), , , , O, (III), , (B) II > III > I, , (C) III > I > II, , (D) II > I > III, , Which is the correct stability of oxy-anions given below, O, , CH3, , O, , (i) CH3 C, , (ii), , (iii) CH 3 C, , O, , (A) ii > i > iv > iii, 4., , O, , (iv) CH 3 CH2, , CH3, , (B) i > ii > iii > iv, , (C) ii > I > iii > iv, , (D) I > ii > iv > iii, , Which one is the most stable cation in the following, OH, , OH, , OH, , , , OH, , , (A), , (B), , (C), , (D), , , , 5., , O, , , , Identify the most stable carbocation :, CH2CH3, , CH2CH3, , , CH, , CH2CH3, , CH3, , , , , (A), , (B), , (C), , (D), , , , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 19
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6., , Consider the following carbanions, (i) CH3 CH2, , (ii) CH2 CH, , (iii) HC C, Correct order of stability of these carbanions in decreasing order is, (A) i > ii > iii, (B) ii > i > iii, (C) iii > ii > I, , (D) iii > I > ii, , , CH2, , , , , 7., (I), , (II), , (III), , Stability order of given carbocation is :, (A) I > II > III, (B) II > I > III, 8., , (C) I > III > II, , (D) III > I > II, , Which of the below carbonium ions is most stable ?, , , , (A), , (C) , , (B), , (D), , , 9., , The order of stability of the following carbocations is, , , , , , , (2), , (3), , Ph, (1), , (A) 1 > 3 > 2, 10., , (B) 2 > 3 > 1, , (C) 2 > 1 > 3, , (D) 3 > 1 > 2, , (C) I > III > II, , (D) III > I > II, , Compare stability of following anions :, O, , O, , O, Cl, , F, I, , III, , II, , (A) III > II > I, 11., , Cl, , (B) II > III > I, , Which of the following is the most stable C ?, , , , , (A), , , , , , (B), , (C), , (D), , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 20
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12., , Find the more stable C ?, , , , , , (A), , (B), , (C), , (D), , , 13., , , , The indicated carbanion is most stable when R is, CH 2, , R, , (A) –NO2, , 14., , (B) –CH3, , (C), , (D), , The indicated carbocation is most stable when R is :, , CH 2, , R, , (A) –OCH3, , 15., , (B) –CH3, , (C), , (D), , The correct stability order for the following species is, , , , , , , O, (I), , (A) II > IV > I > III, , O, (II), , (B) I > II > III > IV, , , , (III), , (C) II > I > IV > III, , (IV), , (D) I > III > II > IV, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 21
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16., , In which of the following pairs A is more stable than B ?, A, , B, , , , , , , (A), , , , (B), , , , (C), , (D) Ph3C, , , CH 2, , 17., , (1), , , CH 2, , (CH3)3C, , , CH2, , (2), , CH3, , , , , CH 2, , (3), , CH 2CH3, , , , (D), , CH3 CH, , CH3, , C(CH 3)3, , Which carbocation is the most stable in the above given reaction ?, (A) 4, (B) 3, (C) 2, (D) 1, 18., , Correct decreasing order of stability of the following carbocations, , CH2, , , CH2, , , CH2, , CH3, x, , CD3, y, , CT 3, z, , (A) x > y > z > w, 19., , w, , (B) z > y > x > w, , (C) w > z > y > x, , (D) w > x > y > z, , Most stable carbocation is, , CH 2, , , CH 2, , (A), , , CH 2, , (B), , , CH 2, , (C), NH2, , O, , 20., , , CH2, , (D), CH3, , OH, , Which is correct stability order of the following carbocations ?, O, , , , , (i), , (ii), O, , (A) i > ii > iii, , O, , O, , (iii), O, , (B) ii > I > iii, , , , (C) iii > ii > I, , O, , (D) iii > I > ii, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 22
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21., , What is the correct order of stability of carbocations, , CH2, , , CH2, , , , , I, , II, , (A) II > I > IV > III, 22., , III, , IV, , (B) II > I > III > IV, , (C) I > II > IV > III, , (D) I > II > III > IV, , In which of the following options second compound is more stable than the first, , (A), , (B), , , , (C), , N, H, , O, , , , (D), , , , , NH, , , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 23
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ORGANIC CHEMISTRY, Daily Practice Problems, Class : XIII, , 1., , Target IIT-JEE, Time : 30 min., , DPP # 7, , Order of Heat of hydrogenation of the given following compound, H, , (I), , (II), , (III), , H, , H, , (A) I > II > III, , 2., , 3., , (B) II > III > I, , H, , (C) III > I > II, , (D) I > III > II, , Which of the following alkene have maximum heat of combustion?, (A) 2, 4-Dimethyl-1-pentene, , (B) 1-Heptene, , (C) 2, 4-Dimethyl 2-pentene, , (D) 4, 4-dimethyl-2-pentene, , C5H12, , (1) mole, H2, , Identify which isomer of A is having maximum heat of combustion., (A), , 4., , 5., , (B), , (C), , (D), , Correct order of heat of hydrogenation of the below compounds?, , (i), , (ii), , (iii), , (iv), , (A) iii > iv > ii > i, , (B) i > ii > iv > iii, , (C) iv > iii > i > ii, , (D) ii > i > iii > iv, , Compare heat of combination of following compounds :, , (I), , (A) l > ll > lll, , (II), , (B) lll >l > ll, , (III), , (C) l > lll > ll, , (D) lll > ll > l, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 24
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6., , Which of the following will have minimum heat of combustion, , (A), , (B), , (C), , (D), , 7., (I), , (III), , (II), , Which of the following orders is correct for heat of hydrogenation of these compounds ?, (A) I > II > III, (B) III > II > I, (C) II > III > I, (D) III > I > II, Passage ( Q.8 to Q.9), The heat of combustion of a compound is the enthalpy change for the complete oxidation of the compound, For a hydrocarbon complete oxidation means converting it to carbon dioxide and water . This can be, accomplished experimentally and the amount of heat evolved can be accurately measured in a device called, a calorimeter for methane, For example, the heat of combustion is -803 kJ mol-1., , CH 4 2O 2 , CO 2 2H 2 O Hº 803 kJ mol 1, 8., , Compare the heat of hydrogenation of given compound, , (b), , (a), , (c), , (d), , (D) b > c > d > a, , (D) c > d > a > b, , Compare the heat of combustion of given compound ;, (a) 1- pentene, (b) 1-butene, (c) 2-pentene, (A) d > a > c > b, (B) c > a > b > d, (D) a > c > d > b, , (d) 2-butene, (D) a > c > b > d, , (A) a > d > c > b, 9., , (B) a> c > b > d, , Passage ( Q.10 to Q. 12 ), , (1), , 10., , (2), , (3), , Correct order of Heat of hydrogenation for the given compounds is, (A) 2> 3 > 1 > 4, (B) 4 > 2 > 1 > 3, (C) 3 > 2 > 1 > 4, , (4), , (D) 4 > 1 > 2 > 3, , 11., , correct order of Heat of hydrogenation per mole of H2 for the given compounds is, (A) 3 > 1 > 2 > 4, (B) 2 > 4 > 3 > 1, (C) 4 > 2 > 1 > 3, (D) 1 > 3 > 4 > 2, , 12., , Sum of a-hydrogens of all the given compounds is :, (A) 15, (B) 16, (C) 17, , (D) 18, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 25
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , Time : 30 min., , DPP # 8, , Which of the following compounds will have the longest C=C bond ?, CH3, , (A) H 3C, , CH, , CH2, , (C) CH 2 C, , (B) CH3 C CH CH2, , CH2, , (D) CH3 C, CH3, , CH3, , 2., , CH2, , Correct order of bond length will be –, (a), , CH, , (c), , HC, , (d), , (b), , (A) c > a > b > d, , 3., , (B) c > b > a > d, , (C) a > c > b > d, , (D) c< a < b < d, , Assuming that each resonance structure contributes equally to the final resonance hybrid of phenan, threne, Identify the longest bond and stortest bond in phenanthrene ., a, d, C, , b, e, , (A) A shortest & B longest, , (B) C longest & D shortest, , (D) E shortest & A longest, , (D) B longest & C shortest, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 26
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , Time : 30 min., , DPP # 9, , Which of the following anion is not resonance stabilised ?, , , COO, , O, Me, , O, , , , Me, , , , (A) CCl3, 2., , (B), , (C), , (D), , Which of the following cation/s is/are not resonance stabilized ?, , , , , (A) Vinyl cation : H 2 C C H, , (B) Allyl cation : H 2 C CH C H 2, , CH2, , , , (C) Phenyl cation :, , 3., , (D) Benzyl cation :, , In which of the following pair Ist compound the more resonance energy than IInd ?, (A), , (B), (I), , SH, , (II), , S, (II), , (I), , (C), , (D), (i), , (ii), , (I), , (II), , Passage (Q.4 to Q.6), Apart from benzene there are many other examples of aromatic compounds. Those molecules having two or, more benzene rings fused together are known as benzenoid aromatic compounds or polycyclic benzenoid, aromatic hydrocarbons naphthalene. Phenanthrene and anthracene are examples of benzenoid aromatic, compound. On the other hand the cyclopentadienyl anion. The cycloheptatnenyl cation, trans-15,16-dimethyldihydropyrene, and the aromatic annulenes (except for [6] annulene) are classified as nonbenzenoid, aromatic compounds. Another example of a nonbenzenoid aromatic hydrocarbon is the compound azulene., Azulene has a resonance energy of 205 kJ mol–1. There is substantial separation of charge between the rings, in azulene., , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 28
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4., , Which of the given compound(s) have high Dipole moment ?, O, , (III), , (I), , (IV), , (II), , 5., , (A) Only (I) and (III), , (B) (II), (III) and (IV), , (C) (II) and (III), , (D) (II) only, , The correct order of resonance energy (in kJ/mol) of the following aromatic compounds is, , N, , O, , H, (I), , (II), , (A) (I) > (II) > (III), , 6., , (III), , (B) (II) > (I) > (III), , (D) (II) > (III) > (I), , Compare rate of reaction with AgNO3, I, , I, , I, , (Order of resonance energy), , O, (I), , (II), , (III), , (A) (II) > (III) > (I), 7., , (C) (III) > (II) > (I), , (B) (I) > (II) > (III), , (C) (I) > (III) > (II), , (D) (II) > (I) > (III), , Correct statement for the given compounds is, OMe, , a, , OMe, , b, , (A) Resonance energy of b is higher, (B) Heat of hydrogenation per mole of H2 is higher for a, (C) Heat of hydrogenation per mole of H2 is higher for b, (D) Number of equivalent resonating structures for a and b is same, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 29
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8., , Identify the correct, (A), , O, , S, , <, , O, , (Cation stability), , <, , (B), , (Resonating structures stability), , S, , N, , N, , , , H, , <, , (C), , (Heat of hydrogenation), , CH3, , (D), , CH3, , >, , (Thermodynamic stability), CH3, , CH3, , 9., , Which of the carbocation is resonance stabilized, , , (A), , O, , (B), , , , (C), , , , , , (D), , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 30
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , 1., , 2., , Time : 30 min., , DPP # 10, , Identify the acidic strength order in the following compounds., (I), , (II), , (III), , (A) I > II > III, , (B) III > II > I, , (C) II > I > III, , (D) III > I > II, , Which of the following reaction will give aromatic product ?, Br, , AgNO 3, , (A), , (B), , + 2Fe, , 2Na, , (C), , +3, , (D), , NaH, , N, , O, , 3., , Correct order of acidic strength among the following compounds, CH3, , CH3, , (1) CH3COOH, , (2) CH3CH2COOH, , (3) H3C, , CH, , COOH (4) H3 C, , C, , COOH, , CH3, , (A) 4 > 3 > 2 > 1, 4., , (B) 1 > 2 > 3 > 4, , (D) 4 > 1 > 2 > 3, , Which one is correct matching of compound with pKa value respectively, CI, , (I), , H, , NO 2, , (II), COOH, , (A) 3.98. 3.41, 4.19, 5., , (C) 3 > 2 > 1 > 4, , (III), COOH, , COOH, , (B) 4.19, 3.41, 3.98, , (C) 3.41, 3.98, 4.19, , (D) 3.98, 4.19, 3.41, , Find the correct acidic strength order:, , C, NH3, , NH3, a, +N, H, , (A) a > b > c, , (B) c > b > a, , b, , (C) b > c > a, , (D) c > a > b, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 31
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6., , NaHCO 3, (1 Mole), , 14, COOH, , HO 3S, , (A), gas, , NaHCO3, (1 Mole), , Molar mass of gas A+ gas B is, (A) 89, (B) 88, , 7., , (B), gas, , (C) 90, , (D) 108, , What is the correct order of acidic strength ?, , H, , O, , O, , O, C, , CH3 C, , OH, , I, (A) I > II > III > IV, , C, , OH, , II, (B) IV > I > II > III, , OH, , H2CO3, IV, (D) I > III > II > IV, , III, (C) III > IV > I > II, , CH=CH2, NH2, , C, , 2 mole of NaNH 2, , CH, , Product (A), , OH, , 8., , The product (A) will be, CH=CH2, , (A) NH, , C, , CH=CH 2, C, , (B) NH, , OH, , 9., , C, , CH=CH 2, C, , (C) NH, 2, , O, , C, , CH=CH, , C, , (D) NH, 2, , O, , C, , C, , O, , Among the following given compounds, COOH, , COOH, , COOH, OH, , COOH, OH, , OH, , OH, II, , I, , III, , The decreasing order of their acidicy is, (A) I > II > III > IV, (B) I > III > II > IV, OH, , (C) IV > II > III > I, , (D) IV > II > I > III, , (C) NaHCO3, , (D) FeCl3, , OH, COOH, , 10., , IV, , COOCH3, , &, , Can be differentiated by, (A) NaOH, (B) Na metal, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 32
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15., , For the given compound correct statements are :, Hb, O, , Ha, , (A) Acidic strength of Ha is more than Hb, (B) Acidic strength of Hb is more than Ha, (C) Bond strength of Ha is more than Hb, (D) Bond strength of Hb is more than Ha, , 16., , List-(I), (P) 1 mole of EtOH reacted with Na, (Q) 1 mole of EtOH reacted with NaH, (R) 1 mole of EtOH reacted with NaHCO3, (S) 1 mole of MeCOOH reacted with NaHCO3, Code :, P, Q, R, S, (A), 1, 2, 3, 4, (B), 1, 4, 3, 2, (C), 1, 2, 4, 3, (D), 2, 1, 3, 4, , List-(II) (Moles of gas released), (1) 1/2 mole H2, (2) 1 mole H2, (3) 1 mole CO2, (4) No reaction, , 17., , Number of compound react with NaHCO3 to evolve CO2 gas, OH, , COOH, , (A), , (B) CH3SO3H, C, , CH, HO, , (E), , (C), , (D), OH, , O, , (F), , (G), HO, , NH 2, , COOH, , (H), , O, NO 2, , OCH3, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 34
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ORGANIC CHEMISTRY, Daily Practice Problems, , Target IIT-JEE, , Class : XIII, , Time : 30 min., , DPP # 11, , 1., , Which one of the following statement is not correct ?, (A) Amines are stronger bases than water ., (B) Basic strength of amines decreases in the following order: R3N > R2NH > RNH2 (In gaseous state ), (C) Carbon –nitrogen bond length in anline is shorter than that of C-N bond length in hydrogen cyanide, (D) Aromatic compound has (4n + 2 ) electons in the loop, , 2., , How many resonating structure is possible of be following, O, , (A) 8, 3., , (B) 9, , (C) 10, , (D) 11, , Which of the following could be protonated without destroying its aromaticity ?, , (A), , (B), , N, , (C), , (D) All, N, , N, H, , H, , 4., , Correct order of Basic Strength (Kb order ) is, NH2, NH2, (2), , (1), , (A) 4 > 3 > 2 > 1, 5., , NH, , NH2, NH, , H2N, , NH, (4), , (3), , (B) 1 > 2 > 3 > 4, , (C) 4 > 3 > 1 > 2, , (D) 1 > 4 > 3 > 2, , The order decreasing basicity of following anions is, O, (I) CH3C, , O, , (II), , H3C, , (III) CH3O, , O, , (IV), , Br, , (A) II > III > IV > I, , (B) I > IV > II > III, , O, , O, , (C) III > II > IV > I, , (D) III > II > I > IV, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 35
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12., , List-I, , List II, , (P) Stability order, , (P), , (Q), , (R), , (1) P > Q > R, NO 2, NO 2, , (Q), , (Q)Acidic strength order (P), , (2) P > R > Q, , (R), , NO2, COOH, , COOH, , NH2, , NH2, , COOH, NH2, , CH3, , (R) Basic strength order (P), , (3) R > Q > p, , (R), , (Q), CH 3, , CH3, , (S) Heat of combustion order (P), , (A), (B), (C), (D), , Codes, P, 3, 4, 2, 1, , Q, 2, 3, 1, 2, , (R), , (Q), , R, 1, 2, 4, 3, , (4) R > P > Q, , S, 4, 1, 3, 4, , Join with code “SKSIRLIVE” for 10% discount on your unacademy subscription, , Page # 38