In the above reaction,identify the major product $(A)$ of the reaction.

Give simple chemical tests to distinguish between the following pairs of compounds.
$(i)$ Propanal and Propanone
$(ii)$ Acetophenone and Benzophenone
$(iii)$ Phenol and Benzoic acid
$(iv)$ Benzoic acid and Ethyl benzoate
$(v)$ Pentan$-2-$one and Pentan$-3-$one
$(vi)$ Benzaldehyde and Acetophenone
$(vii)$ Ethanal and Propanal

The major product in the following reaction is

Match the compounds given in Column-$I$ with their names in Column-$II$.

Column-$I$ (Formula)	Column-$II$ (Name)
$(A)$ $CH_3-CH=CHCHO$	$(i)$ $1,3$-diphenylprop-$2$-en-$1$-one
$(B)$ $CH_3-C(CH_3)=CH-COCH_3$	(ii) Acetophenone-$2,4$-dinitrophenylhydrazone
$(C)$ $C_6H_5-CH=CH-COC_6H_5$	(iii) But-$2$-enal
$(D)$ $C_6H_5-C(CH_3)=N-NH-C_6H_3(NO_2)_2$	(iv) $4$-methylpent-$3$-en-$2$-one

Give the expected product of the following reaction.

The end product of the above reaction is: