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Chemistry Class 12 Chapter 11
Alcohols, Phenols and Ethers
Test 9
1.
The process of fermentation of starch involves many enzymes, enzyme sequence is?
Maltase-diastase-zymase
Diastase-maltase-zymase
Zymase-maltase-diastase
Diastase-zymase-maltase
2.
Ethanol can be converted into ethanoic acid by?
Hydration
Fermentation
Hydrogenation
Oxidation
3.
Methyl alcohol is not used?
As a substitute for petrol
As a solvent
For denaturing of ethyl alcohol
As an antifreezing agent
4.
Which phenol is heated with nitric acid, the product is?
Nitrobenzene
Phenoxide acid
Benzene
Picric acid
5.
When water gas is heated under temp. and pres.in the presence of ZnO+CrO
3
product is?
Methanol
Carbonic acid
Methane
Methanol
6.
Bakelite process involves?
Reduction
Oxidation
Condensation
Polymerization
7.
Heating phenol with Zn dust yields?
Benzene
Phenoxide
Cyclohexane
Benzoic acid
8.
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called?
Extract
Filtrate
Molasses
Mother liquor
9.
The formula of starch is?
C
10
H
10
O
5
C
6
H
12
O
6
C
6
H
9
O
5
C
12
H
22
O
11
10.
Which compound shows hydrogen bonding?
CH
3
OCH
3
C
2
H
6
C
2
H
5
OH
C
2
H
5
Cl
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