$\mathrm{Assertion}:$ Benzaldehyde is more reactive than ethanol towards nuclephilic attack.

$\mathrm{Reason}:$ The overall effect of $-\mathrm{I}$ and $+\mathrm{R}$ effect of phenyl group decreases the electron density on the carbon atom of .

Arrange the following in the order of increasing value of the equilibrium constant for hydration $, {\mathrm{K}}_{\mathrm{hyd}}$ (smallest value first):

Final product of the given reaction is:

${\mathrm{CH}}_3-\mathrm{CHO}\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{i}\right) {\mathrm{CH}}_3\mathrm{MgBr}}{\to }}\left(\mathrm{a}\right)\stackrel{{\mathrm{H}}_2{\mathrm{SO}}_4,△}{\to }\left(\mathrm{b}\right)$ $\stackrel{(\mathrm{Hydroboration}-\mathrm{oxidation})}{\to }$$\left(\mathrm{c}\right)$ 

In the above reaction, ($\mathrm{a}$) and ($\mathrm{c}$) are

Give the correct sequences of reaction for the following conversion: