Page 2 : eoNAY, , Ans., , ©, w, , Q>, PNIDARWNH RB oIAHEYN—, , Oo >, mw &, , Ans., , Ans., Q. 6., , Ans., , Ans., , Q.7., Ans., , Ans., , ... growth takes place in plants., MEDC ses satessceee can be removed by using concave lens., , 1 Horse power = .............. watt., The carrier of characters from one generation to another generation is called, , 1. Red, 2 CaS, H,0 or 2CaSO,°H,0, 3. Lead and Tin, 4. Parasite, 5. Life, , time, 6. Short sightedness, 7. 746, 8. Factor., Match the columns : |, , ‘”? ‘B, Liquid metal (a) Estrogen, Ovary (b) Fusion of male and female gamete, Thyroid (c) Hg (Mercury), Unisexual (d) Sperm, Fertilization (e) Thyroxine, Male (f) Estrogen, Alloy (g) Brass, Female (h) Human., , 1. (c), 2. (f), 3. (e), 4. (hy, 5. (b), 6. (d), 7. (g), 8. (a)., , Answer the following in one word/sentence :, , What type of plant is drosera according to nutrition ?, , State name of parasitic plant., , State name of the scientist who first gave the concept of gene., Power of concave lens is., , Which lens is used to remove presbyopia ?, , What is the e.m.f of dry cell ?, Name the device which converts mechanical energy into direct current (D.C.)., , From which types or organism the nervous system is found ?, , 1. Insectivorous, 2. Rafflesia, 3. Sutton, 4. Negative, 5. Bifocal, 6. 1-5 Volt,, 7. D.C. generator, 8. Pituitary gland., , Write balanced equation for the following chemical reactions., , (i) Hydrogen + Chlorine ——> Hydrogen chloride, , (ii) Barium chloride + Aluminium sulphate ——> Barium sulphate, , + Aluminium chloride., See Chapter 1, Very Short Answer Type Q. No. 2., Or, Whiy does the colour of copper sulphate solution change when an iron nail is, , dipped in it., , See Chapter 1, Very Short Answer Type Q. No. 4, , Name two metals which are found in free state in nature., , See Chapter 3, Very Short Answer Type Q. No. 14., Or, , Write the equations for the following reactions :, , (i) Reaction of iron with steam., , (ii) Reaction of calcium and potassium with water., , See Chapter 3, Very Short Answer Type Q. No. 4., , Write names of elements of zero group., , See Chapter 5, Very Short Answer Type Q. No. 11., Or, , What are valence electrons ?, , See Chapter 5, Very Short Answer Type Q. No. 9.

Page 3 : Q.8., Ans,, , Ans,, , Q9., Ans., , Ans., , Q. 10., Ans., , Ans., Q. 11., , Ans., , Ans., , QNI2;, Ans., , Ans., Q. 13., Aus., , Ans., Q. 14., , Ans., , Ans., Q. 15., , Ans., , Ans., , Q. 16., Ans., , ‘0 decide whether something is alive ?, , What criteria do we use t Q.No. 2., , See Chapter 6, Very Short aoe Type, n ., Where do plants get each of the raw materials required for photosynthesis ?, See Chapter 6, Very Short Answer Type Q. pe: 6., What is meant by vegetative propagation ?, See Chapter 8, Very Short ORS Q.No. 5., r, , How is it possible to control fertilization ?, See Chapter 8, Very Short Answer Type Q. No. ne es, Why are the small numbers of surviving tigers, a cause of worry «, , See Chapter 9, Very Short Answer Type Q. No.2., Or, , Define heredity., See Chapter 9, Very Short Answer Type Q. No. 3., What is meant by focal length of spherical mirror. State relation between, focal length and radius of curvature., See Chapter 10, Very Short Answer Type Q. No. 8., Or, , What is meant by relative refractive index ?, , See Chapter 10, Very Short Answer Type Q. No. 7., Why does the cord of an electric heater not glow while heating element does ?, , See Chapter 12 Very Short Answer Type Q. No. 15., Or, , Define electric current and write its S.I. unit., See Chapter 12, Very Short Answer Type Q. No. 13., Give two reasons of global warming., See Chapter 15, Very Short Answer Type Q. No. 2., Or, What is food chain ?, See Chapter 15, One word Answer:Type Q. No. 8., Why are coils of electric toasters and electric irons made of alloy rather than, a pure metal ?, See Chapter 12, Very Short Answer Type Q. No. 14., Or, Define electric power., See Chapter 12, Very Short Answer Type Q. No. 2., Write a balanced chemical equation with state symbols for the following, reactions :, (i) Solutions of barium chloride and sodium sulphate in water react to give, insoluble barium sulphate and the solution of sodium chloride., (ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution, (in water) to produce sodium chloride solution and water,, See Chapter 1, Short Answer Type Q. No. 2., Or, Give differences between strong electrolyte and, See Chapter 1, Short Answer Type ©, No. ye aa, Why the trunks of trees and roads a i i, See Chapter 11, Short Answer Type inte a during summer ?, Or