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Alcohols, Phenols and Ethers - 4
1.
Absolute alcohol can be obtained from rectified spirit by
a) By redistillation in the presence of CaO
b) By adding sodium metal
c) By extraction
d) Not possible because of azeotropic mixture
2.
When ethyl alcohol is heated with NH
3
in presence of ThO
2
then
a) C-O bond is broken
b) O-H bond is broken
c) Ethane is formed
d) Ethene is formed
3.
When ethyl bromide is heated with Ag
2
O the product formed is
a) Ethanal
b) Ethanol
c) Ethene
d) Diethyl ether
4.
Which compound shows maximum hydrogen bonding with water
a) C
6
H
5
OH
b) CH
3
-OH
c) CH
3
-O-CH
3
d) C
2
H
5
OH
5.
Phenol can be distinguished from benzene by
a) Reaction with Br
2
b) Hydrogenation
c) Sulphonation
d) Nitration
6.
When diethyl ether is treated with PCl
5
the product is
a) Ethyl chloride
b) Triethyl phosphine
c) Ethanol
d) Oxonium ion
7.
R-OH+HCl ZnCl
2
a) Secondary pentyl alcohol
b) No insoluble oily layer
c) O-H bond breaks
d) Insoluble oily layer on heating
8.
R
2
CH-OH+HCl
®
ZnCl
2
a) Insoluble oily layer on heating
b) Insoluble oily layer after 5-10 minutes
c) Insoluble oily layer immediately
d) C-O bond breaks
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