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Title: Ethers Objective type Questions and Answers
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
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Chemistry
1
...
(c)
CH3 OCH3 and CH3 CH2 OCH3
(b)
CH3
CH3 CH2 OCH3 and
CHOCH3 (d)
H3 C
CH3 OCH3 and CH3 CH2 OCH2 CH3
CH3
CH3
CHOCH
H3 C
CH3
CH3 OCH3
C2 H5 OCH3
(b) C2 H5 OH
(d) C2 H5 OC2 H5
In IUPAC system, ethers are named as ______________
(a)
(c)
6
...
CH3 O CH3
CH3 OCH2 CH3
Identify the pairs of ethers, known as mixed ethers _________________
(a)
4
...
Esters
Oxo compounds
alkanes
alkoxy alkanes
(b) hydroxyl alkanes
(d) aryl alkanes
Williamson’s synthesis is used to prepare _______________
(a)
(c)
alcohols
alkenes
(b) alkanes
(d) ethers
7
...
The boiling point of ethers are _____________
(a)
(b)
(c)
(d)
9
...
hydrocarbons
benzene
The reactions of ethers are due to the presence of _____________
(a)
(c)
11
...
sodium ethoxide and methyl bromide
sodium ethoxide and ethyl bromide
sodium methoxide and methyl bromide
sodium methoxide and ethyl bromide
dimethyl ether reacts with chlorine in dark
diethyl ether reacts with chlorine in dark
diethyl ether reacts with chlorine in the presence of sunlight
dimethyl ether reacts with chlorine in dark
C2 H5 – O – C2 H5 + H2O
(a)
(c)
C2 H5 OCH3
2 C2 H5 OH
dil
H2SO4
...
C2 H5 – O – C2 H5 + A
(a)
(c)
14
...
(a)
(c)
19
...
A is ___________
Ether when heated with PCl5 gives _____________
(a)
(c)
18
...
HI
CH3 I
(b)
(d)
The ______________ nature, has made ether a versatile solvent
...
CH3 Cl
P and Cl2
C2 H 5 – O – C2 H 5 + A
(a)
(c)
15
...
A is ___________
ethyl iodide only
ethyl iodide + H2O
(b) ethanol + ethyl iodide
(d) none
Ether is used as an _____________
(a)
(c)
anaesthetic
anti pyretic
(b) antiseptic
(d) all the above
Title: Ethers Objective type Questions and Answers
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.