Short Answer Type
Multiple Choice QuestionsSelect the ether among following that yields methanol as one the products on reaction with cold hydroiodic acid
1-methoxybutane
1-methoxybutane-2-methylpropane
2-methoxy-2-methylpropane
methoxybenzene
C.
2-methoxy-2-methylpropane
According Zeise! method, when an ether reacts with cold HI, alkyl iodide and alcohol are formed. In case of asymmetrical ether, the alkyl halide is always formed from the smaller alkyl group provided no tertiary (3°) alkyl group is present and if any 3° alkyl group is present, the halogen gets attached with it. In case of alkyl aryl ethers, the products are always phenol and an alkyl halide.
Arrange the following compounds in order of decreasing acidity
II>IV>I>III
I>II>III>IV
III>I>II>IV
III>I>II>IV
A solution of (–) –1 – chloro –1 – phenylethane is toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of
carbanion
Carbene
Carbocation
Carbocation
Iodoform can be prepared from all except
ethyl methyl ketone
isopropyl alcohol
3-methyl-2-butanone
3-methyl-2-butanone
Phenol is heated with a solution of a mixture of KBr and KBrO3.The major product obtained in the above reaction is
2-Bromophenol
3-Bromophenol
4-Bromophenol
4-Bromophenol
Which of the following reagents may be used to distinguish between phenol and benzoic acid ?
Aqueous NaOH
Tollen's reagent
Molisch reagent
Molisch reagent
From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2, is
1-Butanol
2-Butanol
2-Methylpropan-2-ol
2-Methylpropan-2-ol
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