Q. No.Which of the following reaction(s) can be used for the preparation of alkyl halides?
I.
II.
III.
IV.
1. I, III, and IV
2. I and II
3. Only IV
4. III and IV
I.
II.
III.
IV.
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2. MnO2
3. Aluminium isopropoxide
4. Acetone
2. Dehydration reaction
3. Williamson alcohol synthesis reaction
4. Williamson ether synthesis reaction
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In the reaction
the electrophile involved is
1. Dichloromethyl cation
2. Formyl cation
3. Dichloromethyl anion
4. Dichlorocarbene (:CCl2)
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The heating of phenyl-methyl ethers with HI produces
1. lodobenzene
2. Phenol
3. Benzene
4. Ethyl chlorides
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A characteristic group test for phenolic group is:
1. Liebermann's nitroso reaction
2. Coupling with diazonium salt
3. Neutral FeCl3
4. All of the above
Dunstan’s test is used for identification of:
1. Acetone
2. Alcohol
3. Glycerol
4. Carbonyl compound
Which are not cleaved by HIO4?
I : Glycerol
II : Glycol
III: 1, 3-propanediol
IV: Methoxy-2-propanol
1. I, II, III, IV
2. I, II
3. II, III
4. III, IV
Find missing reagents.
(a) x = LiAlH4, y = NaBH4
(b) x = LiAIH4 / AlCl3, y = LiAlH4
(c) x = LiAIH4, Y = LiAIH4 / AlCl3
(d) x = H2 / Ni, y = H2 / Pt
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