" The acidic strength of the following acids is
"P" acetic acid "Q" .formic acid,"R" .Benzoic acid,S.oxalic acid "

Arrange increasing order of acidic strength of following dibasic acids: (I) oxalic acid. " " (II) succinic acid " " (III) malonic acid " " (IV) adipic acid

The correct order of acid strength of following aromatic acids is : Benzoic acid (I), 4-Nitrobenzoic acid (II), 4-Dinitrobenzoic acid (III), 4-Methoxybenzoic acid (IV)

Decarboxylation of which of the following acid gives benzoic acid –