An aldehyde (A) `(C_(11)H_(8)O)`, which does not undergo self aldol condensation, gives benzaldehyde and 2 mol of (B) on ozonolysis. Compound (B) on oxidation with silver ion gives oxalic acid. Identify the compounds (A) and (B).

An aldehyde A(C_(11)H_(8)O) which does not undergo self aldol condensation but gives benzaldehyde and two moles of B on ozonolysis. Compound B on oxidation with silver ions gives oxalic acid. Identify compound A and B.

A compound C_(9)H_(7)O_(2)CI exists predominanthly in enol from (A) and also in keto from (B) On oxideation with KMnO_(4) it gives m-chlorobenzoic acid as one of the products. Identify the compounds (A) and (B).

A hydrocarbon (A) of the formula C_(7)H_(12) on ozonolysis gives a compound (B) which undergo aldol condensation giving 1-acetylcyclopentene. Identify (A) and (B).

A compound 'X' on ozonolysis followed by reduction gives an aldehyde, C_(2)H_(4)O and 2-butanoic. Compound 'X' is:

An compound (A) which undergo halogorm reaction give compound (B) on reduction . Compound (B) on dehydration with conc. H_(2)SO_(4) gives compound ( C ) which forms secondary butylbromide with HBr. Identify (A).

Compound (A), C_(8)H_(6)NOBr , is optically active. Reduction of (A) gives (B) which reacts with nitrouos acid to form (C), dihydric alcohol. Benzene sulphonyl chloride reacts with (B) to give a product soluble in NaOH. Hydrolysis of (A) gives (D) which is an optically active acid. (A) does not give any precipitate with aqueous AgNO_(3) . Controlled oxidation of (A) gives monobromo benzoic acid. Compound (A) on reaction with Br_(2)//Fe gives only one compound. Identify (A), (B), (C), and (D).