In the given reaction $C_6H_5CHO + X \xrightarrow{(i) Zn, (ii) HOH/NH_4Cl} C_6H_5-CH(OH)-CH_2-COOC_2H_5$,$[X]$ will be:

Cannizzaro reaction between formaldehyde molecules involves the formation of

Which of the following reactions is an example of Clemmensen reduction?

Compound '$X$' (molecular formula $C_3H_8O$) reacts with acidic potassium dichromate to give product '$Y$' (molecular formula $C_3H_6O$). '$Y$' gives a silver mirror test. When '$Y$' is reacted with aqueous $NH_2CONHNH_2$ and sodium acetate,it gives product '$Z$'. What is the structure of '$Z$'?

The product of the following reaction is $C_6H_5CHO + CH_3CH_2CHO \xrightarrow[\Delta]{\text{Dil. NaOH}}$

Which of the following cannot give a yellow $ppt.$ with $I_2/NaOH$?