41
Adipic acid is an intermediate in the manufacture of
A)
Perspex
B)
Nylon-66
C)
Polystyrene
D)
Bakelite
Answer & Solution
Answer: Option
B
42
Proximate analysis of coal determines its __________ content.
A)
Moisture, ash, sulphur & volatile matter
B)
Moisture & volatile matter
C)
Moisture, sulphur, nitrogen & fixed carbon
D)
None of these
Answer & Solution
Answer: Option
B
43
Ultimate analysis of coal determines its __________ content.
A)
Carbon, hydrogen, nitrogen & sulphur
B)
Carbon, ash, sulphur & nitrogen
C)
Carbon, sulphur, volatile matter & ash
D)
Carbon, volatile matter, ash & moisture
Answer & Solution
Answer: Option
C
44
A substance produced by a living organism and capable of anti-microbial activity is called a/an
A)
Antibiotic
B)
Antiseptic
C)
Disinfectant
D)
None of these
Answer & Solution
Answer: Option
A
45
Producer gas consists mainly of
A)
CO, CO2 , N2 , H2
B)
CO, H2
C)
H2 , CH4
D)
C2 H2 , CO2 , H2
Answer & Solution
Answer: Option
A
46
Pick out the wrong statement.
A)
Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate
B)
Glass is decolorised during its manufac-ture by adding antimony oxide, mangnese dioxide or arsenic oxide
C)
Ordinary glass is represented chemically by Na2 O.CaO.6SiO2
D)
Red color is imparted to glass by addition of arsenic oxide
Answer & Solution
Answer: Option
D
47
Hydrogenation of oil/fat does not
A)
Improve its resistance to rancid oxidation
B)
Raise its melting point
C)
Remove double bonds
D)
None of these
Answer & Solution
Answer: Option
D
48
Builders are added in soap to act as
A)
Cleaning power booster
B)
Anti-redeposition agent
C)
Corrosion inhibitor
D)
Fabric brightener
Answer & Solution
Answer: Option
A
49
__________ is used as a catalyst in fat splitting.
A)
ZnO
B)
Ni
C)
V2 O5
D)
FeO
Answer & Solution
Answer: Option
A
50
Sucrose is a disaccharide consisting of
A)
Glucose and glucose
B)
Glucose and fructose
C)
Glucose and galactose
D)
Fructose and galactose
Answer & Solution
Answer: Option
B
