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Chemical Industries - 2
1.
All detergents contain polar group-SO
3
Na.
a) False
b) True
2.
PVC is prepared by the polymerization of ethane (CH
2
=CH
2
).
a) True
b) False
3.
Turpentine oil is used in shoe polish to prevent it from drying.
a) True
b) False
4.
NaOH+NH
4
Cl heat------------------->NaCl+NH
3
+H
2
O.
a) True
b) False
5.
Vinyl chloride is used in the manufacture of bakelite.
a) True
b) False
6.
Chemical formula of Caustic soda is
a) KOH
b) Na
2
CO
3
c) NaOH
d) NaHCO
3
7.
By heating lime stone (CaCO
3
) following gas is obtained
a) Cl
2
b) O
2
c) CO
2
d) CO
8.
The original product obtained in the solvey's process is
a) KOH
b) NaHCO
3
c) NaOH
d) Na
2
CO
3
9.
The common washing soda is
a) Trihydrate
b) Decahydrate
c) Pentahydrate
d) Dihydrate
10.
Na
2
CO
3
+H
2
O+ __________ --------------->2NaHCO
3
a) O
2
b) CO
c) CO
2
d) H
2
11.
Compound used in fire extingusihers
a) NaOH
b) Na
2
CO
3
c) NaHCO
3
d) KOH
12.
Which salt is added to the soap and glycerine mixture
a) Caustic polash
b) Baking soda
c) Common Salt
d) Caustic soda
13.
The compound used as a thinner in the preparation of paint is
a) Barium Sulphate
b) Xylol
c) Gypsum
d) Polyhydroxy Phenol
14.
The salt which increases the weight of soap is
a) Sodium Silicate
b) Sodium Salphate
c) Sodium Chloride
d) Sodium phosphate
15.
Spirit varnish is such a type of varnish in which ________ liquid is used as a solvent for resin.
a) Water
b) Volatile
c) Non volatile
d) Benzene
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