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GREEN PARK COACHING CENTRE, LONG TERM - ZOOM CLASS - CHEMISTRY - WORKSHEET – 2, , 13. Hydrocarbons, ALKANES :, 1., , Which of the following compounds cannot be prepared by Wurtz reaction?, a) CH3CH3, , 2., , 3., , b), , CH 3CH − CH 3, |, CH 3, , c) (CH3)2CHCH3, , d) CH3CH2CH2CH3, , 1) a, b, 2) b, c, 3) c, d, 4) All the above, An alkyl halide X reacts with sodium to form 3, 8-dimethyldecane. What is X?, 1) CH3CH 2 − CH − CH 2CH 2Cl, |, CH3, , 2) CH3CH2CH2CH2Cl, , CH3 H, |, |, 3) CH3 − C − C − CH 2 − CH 2 − CH 2 − CH 2Cl, |, |, H CH3, , CH3, |, 4) CH3 − C − CH 2CH 2Cl, |, CH3, , In the following reaction,, , the major product ‘X’ is, , CH2Br, , 1), , 2), , 3), , 4., , Which reaction can be used to prepare methane?, , 5., , a) Kolbe’s electrolysis, b) Wurtz reaction, c) Catalytic reduction of methyl iodide, d) Reduction of methyl iodide by using a zinc-copper couple, 1) a, b, 2) c, d, 3) a, c, Match the columns, , Column – I, Column – II, Cu /523K /100atm, A) CH4 + O2 , → p) HCHO, Mo 2 O3, B) CH4 + O2 , →, ∆, , q) (CH3)3COH, , (CH 3COO) 2 Mn, , C) C2H6 + O2 → r) CH3OH, KMnO 4, D) (CH3)3CH , →, Oxidation, 1) A-s, B-p, C-r, D-s, 3) A-r, B-p, C-s, D-q, , s) CH3COOH, 2) A-q, B-p, C-s, D-r, 4) A-p, B-q, C-r, D-s, , CH3, 6., , H, , CH2, , CH2, , COOH, , NaOH / CaO, , Product (s)., , D, , Which product(s) will be formed in the above reaction?, , 4), , 4) b, d
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3, 12., , 13., , 14., , Decreasing order of heat evolved upon catalytic hydrogenation of given reactants with H2 (Pd/C) is, , 1) b > c > a > d, 2) d > a > c > b, 3) d > c > a > b, 4) c > b > a > d, HI, CH3 – CH = CH – CH2 – CH3 → (A) ; (Major) Compound A is, 1) CH 3 − CH 2 − CH − CH 2 − CH 3, 2) CH 3 − CH − CH 2 − CH 2 − CH 3, |, |, I, I, CH 3, CH 3, |, |, 3) CH 3 − C − CH 2 − CH 3, 4) CH 3 − C − CH 2 I, |, |, I, CH 3, The major product formed in the following reaction is, + HBr → ?, , 1), , 2), , 3), , 4), HOCl, , → Major product is, , 15., , 16., , 1), , 2), , 3), , 4), , Cl, |, Potassium ter.butoxide, CH 3 − CH − CH 2 − CH 3 , → A ; Compound A is, (Major), 1) CH3 – CH = CH – CH3, 2) H2C = CH – CH2 – CH3, CH 3, |, 3) H 3C − C = CH 2, 4) Both (2) & (3), CH3, Ph, , Cl, , 17. Ph, , Cl, , Zn,, , X;, , The major product X is, , CH3, , 1), , 2), , 3), , 4) No reaction
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4, 18., , Identify the correct order of the ease of dehydration of the following compounds., , I, , II, , 1) I > II > III, , III, 2) III > II > I, , 3) I > III > II, , 4) III > I > II, , HCl, , → Major product., CCl 4, , 19., , Cl, , 1), 20., , 2), , 3), , 4), , Decreasing order of rates of hydration of the following alkenes is, P) CH3OCH = CH2, 1) P > Q > R > S, , Q) FCH = CH2, 2) S > R > Q > P, , R) CH3 -CH = CH2, 3) P > S > R > Q, , S), 4) R > S > P > Q, , ALKYNES :, 21., , HX, HX, CH3-C≡C-CH3 →, A →, B, , The compound B is a, 1) vic-dihalide at 1st and 2nd carbon, , 2) gem – dihalide on 1st carbon, , 3) vic-dihalide at 2nd and 3rd, , 4) gem – dihalide on 2nd carbon, , 22., , ‘X’ is, 1), , 2), , 3), , 4), , Br2, (), (), 2, , → A , CCl4, ( ii ) NaNH 2 → B , ( ii ) CH3 − Cl → C, i alc KOH, , 23., , i NaNH, , Product (C) is, , 24., , 25., , 1) Ph – C ≡ CNa, , 2) Ph – CH2 – C ≡ CH, , 3) Ph – C ≡ C – CH3, , 4) Ph – CH = C = CH2, , Aqueous solution of which of the following compounds on electrolysis gives acetylene gas?, I) Sodium fumerate, , II) Sodium maleate, , III) Sodium acetate, , IV) Calcium carbide, , 1) I, II, , 2) III, IV, , 3) only III, , 4) only I, , The number of carbon atoms arranged linearly in 1-pentyne is, 1) 3, , 2) 4, , 3) 5, , 4) 2
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7, , 1), , 2), , 3), , 4) 1 and 2 in equal amounts, , Here A, B are respectively, , 38., , 1), 39., , 3), , 4), , Which of the following compounds will undergo Friedel Crafts alkylation with fastest rate?, , 1), , 40., , 2), , 2), , 3), , 4), , Which of the following groups is ortho and para directing?, 1), , 2) –CHO, , 3) –OH, , 4)
