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In which one of the following cases will the α-hydrogen NOT be abstracted on treatment with one equivalent of base?

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Important Questions on Aldehydes, Ketones and Carboxylic Acids

MEDIUM
Acetic anhydride reacts with diethyl ether in the presence of anhydrous AlCl3 to give
MEDIUM
Which one of the following esters gets hydrolyzed most easily under alkaline conditions?
EASY
In the presence of a small amount of phosphorous, aliphatic carboxylic acid reacts with chlorine or bromine to yield a reaction in which, α-hydrogen is been replaced by halogen. This reaction is known as
MEDIUM
An organic compound A upon reacting with NH3 gives B. On heating, B gives C. C in presence of KOH reacts with Br2 to give CH3CH2NH2. A is :
HARD
With dehydrating agent present which dicarboxylic acid is least reactive towards forming an anhydride?
MEDIUM

The decreasing order of ease of alkaline hydrolysis for the following esters is
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MEDIUM
The major product obtained in the reaction of aniline with acetic anhydride is
EASY

Acid strength given below the correct decreasing order will be :

HARD
In the reaction,

CH 3 COOH LiAlH 4 A PCl 5 B Alc. KOH C ,

the product C is :
MEDIUM
α- chlorosodium acetate on boiling with aqueous sodium nitrite gives
EASY
The correct structure of the product P in the following reaction is

Asn-Ser+(CH3CO)2O(excess)NEt3P
EASY

Give the chemical equation for the reaction of CH3COOH with following:

LiAlH4

MEDIUM
In the following reaction sequence, the correct structures of E, F and G are

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[*implies13C labelled carbon]