Identify the organic compound which,on heating with a strong solution of $NaOH$,is partly converted into an acid salt and partly into an alcohol.

For $C_6H_5CHO$,which of the following is incorrect?

The rate of hydrate formation for the given compounds is:

Benzaldehyde can be converted to benzonitrile by treatment with

Formaldehyde when treated with $KOH$ gives methanol and potassium formate. The reaction is known as

In the following compounds,the ones that give positive iodoform test are:
$(I)$ $CH_3CH_2COCH_2CH_3$
$(II)$ $CH_3CH(OH)CH_3$
$(III)$ $1$-indanone
$(IV)$ $CH_3CH_2COCH_3$
$(V)$ $PhCOPh$
$(VI)$ $PhCOCH_3$