1. The major ingredient of leather is —
(A) Carbohydrate
(B) Collagen
(C) Polymer
(D) Nucleic acid
2. Glass is made from the mixture of —
(A) Quartz and mica
(B) Sand and salt
(C) Sand and silicates
(D) None of these
3. Epoxy resins is used as —
(A) Moth repellants
(B) Insecticides
(C) Detergents
(D) Adhesives
4. Polythene is industrially prepared by the polymerization of —
(A) Methane
(B) Styrene
(C) Acetylene
(D) Ethylene
5. A mixture of water and alcohol can be separated by —
(A) Filtration
(B) Evaporation
(C) Distillation
(D) Decantation
6. A substance which changes readily into vapour without heating is called —
(A) Efflorescent
(B) Synthetic
(C) Volatile
(D) Effervescent
7. In which following processes light energy is converted into chemical energy ?
(A) Respiration
(B) Fermentation
(C) Photosynthesis
(D) Photorespiration
8. Cooking oil can be converted into vegetables ghee by the process of —
(A) Oxidation
(B) Hydrogenation
(C) Distillation
(D) Crystallisation
9. Photosynthesis is —
(A) An exothermic process
(B) An endothermic process
(C) A neutral process
(D) A thermostatic process
10. Which of the following substances exhibit the property of sublimation ?
(A) Ice
(B) Wax
(C) Camphor
(D) Ethyl Alcohol
11. Combustion is the process in which —
(A) Heat is produced
(B) Light is produced
(C) Heat and Light is produced
(D) None of these
12. The chemical used as a fixer in photography is —
(A) Borax
(B) Sodium thiosulphate
(C) Sodium Sulphate
(D) Ammonium persulphate
13. A mixture of iron filings and sand can be separated by —
(A) Heating
(B) Sublimation
(C) Hand picking
(D) Magnetic Separation
14. In which of the following process, Vanadium Pentoxide is used as a catalyst ?
(A) Contact process
(B) Haber process
(C) Solvary process
(D) None of these
15. The rate of chemical reaction does not depend on —
(A) Concentration
(B) Catalyst
(C) Temperature
(D) Pressure
16. Which of the following metals can displace hydrogen from dilute acids ?
(A) Zinc
(B) Gold
(C) Copper
(D) Silver
17. Reaction of alcohol, with carboxylic acid is known as —
(A) Substitution reaction
(B) Addition reaction
(C) Esterification
(D) Hydrogenation
18. Saponification involves the hydrolysis of fats and oils by —
(A) Water
(B) Washing soda
(C) Stearic acid
(D) Caustic acid
19. Which of the following gases is obtained by the reaction of water with Calcium Carbide ?
(A) Acetylene
(B) Ethylene
(C) Methane
(D) Water gas
20. The gas liberated during the reaction of copper with dilute nitric acid is —
(A) NO2
(B) N2O5
(C) O2
(D) NO
21. Which of following substances undergoes chemical change on heating ?
(A) Sodium Chloride
(B) Silica
(C) Lead Nitrate
(D) Platinum wire
22. Water is neither acidic nor alkaline because —
(A) it cannot accept or donate protons
(B) it boils at high temperature
(C) it can dissociate into equal number of hydrogen ions
(D) it cannot donate or accept electrons
23. PVC is obtained by the polymerisation of —
(A) Propene
(B) Vinyl Chloride
(C) Styrene
(D) Acetylene
24. Which of the following metals can displace zinc from a solution of zinc sulphate ?
(A) Lead
(B) Magnetism
(C) Iron
(D) Mercury
25. Water gas is prepared by passing —
(A) Steam over white hot coke
(B) Air over red hot coke
(C) Methane over red hot coke
(D) Steam over heated sulphur
Answers:
1. (B) 2. (C) 3. (D) 4. (D) 5. (C) 6. (C) 7. (C) 8. (B) 9. (B) 10. (C) 11. (C) 12. (B)
(A) Carbohydrate
(B) Collagen
(C) Polymer
(D) Nucleic acid
2. Glass is made from the mixture of —
(A) Quartz and mica
(B) Sand and salt
(C) Sand and silicates
(D) None of these
3. Epoxy resins is used as —
(A) Moth repellants
(B) Insecticides
(C) Detergents
(D) Adhesives
4. Polythene is industrially prepared by the polymerization of —
(A) Methane
(B) Styrene
(C) Acetylene
(D) Ethylene
5. A mixture of water and alcohol can be separated by —
(A) Filtration
(B) Evaporation
(C) Distillation
(D) Decantation
6. A substance which changes readily into vapour without heating is called —
(A) Efflorescent
(B) Synthetic
(C) Volatile
(D) Effervescent
7. In which following processes light energy is converted into chemical energy ?
(A) Respiration
(B) Fermentation
(C) Photosynthesis
(D) Photorespiration
8. Cooking oil can be converted into vegetables ghee by the process of —
(A) Oxidation
(B) Hydrogenation
(C) Distillation
(D) Crystallisation
9. Photosynthesis is —
(A) An exothermic process
(B) An endothermic process
(C) A neutral process
(D) A thermostatic process
10. Which of the following substances exhibit the property of sublimation ?
(A) Ice
(B) Wax
(C) Camphor
(D) Ethyl Alcohol
11. Combustion is the process in which —
(A) Heat is produced
(B) Light is produced
(C) Heat and Light is produced
(D) None of these
12. The chemical used as a fixer in photography is —
(A) Borax
(B) Sodium thiosulphate
(C) Sodium Sulphate
(D) Ammonium persulphate
13. A mixture of iron filings and sand can be separated by —
(A) Heating
(B) Sublimation
(C) Hand picking
(D) Magnetic Separation
14. In which of the following process, Vanadium Pentoxide is used as a catalyst ?
(A) Contact process
(B) Haber process
(C) Solvary process
(D) None of these
15. The rate of chemical reaction does not depend on —
(A) Concentration
(B) Catalyst
(C) Temperature
(D) Pressure
16. Which of the following metals can displace hydrogen from dilute acids ?
(A) Zinc
(B) Gold
(C) Copper
(D) Silver
17. Reaction of alcohol, with carboxylic acid is known as —
(A) Substitution reaction
(B) Addition reaction
(C) Esterification
(D) Hydrogenation
18. Saponification involves the hydrolysis of fats and oils by —
(A) Water
(B) Washing soda
(C) Stearic acid
(D) Caustic acid
19. Which of the following gases is obtained by the reaction of water with Calcium Carbide ?
(A) Acetylene
(B) Ethylene
(C) Methane
(D) Water gas
20. The gas liberated during the reaction of copper with dilute nitric acid is —
(A) NO2
(B) N2O5
(C) O2
(D) NO
21. Which of following substances undergoes chemical change on heating ?
(A) Sodium Chloride
(B) Silica
(C) Lead Nitrate
(D) Platinum wire
22. Water is neither acidic nor alkaline because —
(A) it cannot accept or donate protons
(B) it boils at high temperature
(C) it can dissociate into equal number of hydrogen ions
(D) it cannot donate or accept electrons
23. PVC is obtained by the polymerisation of —
(A) Propene
(B) Vinyl Chloride
(C) Styrene
(D) Acetylene
24. Which of the following metals can displace zinc from a solution of zinc sulphate ?
(A) Lead
(B) Magnetism
(C) Iron
(D) Mercury
25. Water gas is prepared by passing —
(A) Steam over white hot coke
(B) Air over red hot coke
(C) Methane over red hot coke
(D) Steam over heated sulphur
Answers:
1. (B) 2. (C) 3. (D) 4. (D) 5. (C) 6. (C) 7. (C) 8. (B) 9. (B) 10. (C) 11. (C) 12. (B)
13. (D) 14. (A) 15. (D) 16. (A) 17. (C) 18. (D) 19. (C) 20. (D) 21. (C) 22. (C) 23. (B) 24. (B) 25. (A)
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