Practice Test: Question Set - 35
1. Dehydrogenation of ethyl benzene produces
- (A) Styrene
- (B) Naphthalene
- (C) Phenol
- (D) Benzoic acid
2. Oil is a/an
- (A) Mixture
of glycerides
- (B) Mixture of glycerides
of fatty acids
- (C) Solid at normal
temperature
- (D) Ester of alcohols
other than glycerine
3. Main use of hydrazine is
- (A) As a rocket fuel
- (B) In
water treatment
- (C) As a disinfectant
- (D) As fire retardant
4. Raw materials for 'Solvay Process' for manufacture of the soda ash are
- (A) Salt, limestone and
coke or gas
- (B) Ammonia, salt and
limestone
- (C) Ammonia limestone and
coke
- (D) None of these
5. The function of gypsum addition during cement making is to
- (A) Increase the density
of cement
- (B) Decrease
the cement setting rate
- (C) Both (a) and (b)
- (D) Neither (a) nor (b)
6. Sodium bisulphite is used for __________ water.
- (A) Deaeration
- (B) Dechlorination
- (C) Both (a) & (b)
- (D) Neither (a) nor (b)
7. Catalyst used in the hydrogenation of oil is
- (A) Nickel
- (B) Platinum
- (C) Iron
- (D) Alumina
8. Which of the following is the purest form of water out of the following?
- (A) Underground water
- (B) Rain water
- (C) Well water
- (D) Lake water
9. The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
- (A) Alumina
- (B) Silica gel
- (C) Platinum
- (D) Nickel
10. Chemical name of soda ash is
- (A) Sodium
bicarbonate
- (B) Sodium
thiosulphate
- (C) Potassium
carbonate
- (D) None of these
11. 10% oleum comprises of 10% free
- (A) SO2
- (B) H2SO3
- (C) SO3
- (D) H2SO4
12. __________ are added in lacquers to remove film brittleness and to improve adhereness.
- (A) Film forming
materials
- (B) Plasticisers
- (C) Diluents
- (D) Solvents
13. A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
- (A) 1
- (B) 10
- (C) 25
- (D) 40
14. DDT should not be allowed to come in contact with iron (during its manufacture) to
- (A) Avoid its
decomposition
- (B) Prevent
sulphonation of the monochlorobenzene by the acid catalyst
- (C) Achieve
non-hygroscopic property
- (D) None of these
15. Alum is commercially produced from
- (A) Gypsum
- (B) Feldspar
- (C) Galena
- (D) Bauxite
Next Tests: