Practice Test: Question Set - 04
1. Nicotine is
- (A) A volatile alkaloid
- (B) Obtained by treating by-products of the tobacco processing industry
- (C) Both (a) and (b)
- (D) Neither (a) nor (b)
2. Dechlorination of treated water is necessary to
- (A) Remove residual turbidity
- (B) Reduce the bacterial load on filter
- (C) Control taste and odour
- (D) Remove chlorinous taste
3. 20% oleum means that in 100 kg oleum, there are 20 kg of
- (A) SO3 and 80kg of H2SO4
- (B) H2SO4 and 80kg of SO3
- (C) SO3 for each 100 kg of H2SO4
- (D) None of these
4. __________ of quicklime produces slaked lime.
- (A) Hydration
- (B) Dehydration
- (C) Hydrogenation
- (D) None of these
5. CO & H2 are the constituents of
- (A) Producer gas
- (B) Water gas
- (C) Coke oven gas
- (D) All (a), (b) and (c)
6. An oil is converted into fat by its
- (A) Hydrogenation
- (B) Hydrolysis
- (C) Hydrocracking
- (D) Hydration
7. Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.
- (A) 10
- (B) 50
- (C) 80
- (D) 95
8. Chemical formula of BHC, which is an insecticide is
- (A) C6H6Cl6
- (B) C6Cl6
- (C) C6H5Cl
- (D) C6H4Cl2
9. Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
- (A) 10
- (B) 25
- (C) 50
- (D) 98
10. Nylon-6 as compared to Nylon-66 is having higher
- (A) Hardness
- (B) Abrasion/resistance
- (C) Melting point
- (D) None of these
11. In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
- (A) (NH4)2SO4
- (B) NH4Cl
- (C) (NH4)2 NO3
- (D) Liquid NH3
12. Sucrose is a
- (A) Monosaccharide
- (B) Disaccharide
- (C) Polysaccharide
- (D) None of these
13. A mixture of chlorine & sodium bromide acts as a/an
- (A) Insecticides
- (B) Analgesic drug
- (C) Fire retardant
- (D) Hydrogenation catalyst
14. Plasticizers are added to synthetic plastics to
- (A) Impart flexibility
- (B) Improve workability during fabrication
- (C) Develop new improved properties not present in the original resins
- (D) All (a), (b) and (c)
15. __________ is produced using Polycondensation reaction.
- (A) Polythene
- (B) Phenol formaldehyde
- (C) Poly vinyl chloride
- (D) None of these
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