$\mathrm{Assertion} :$ Acetoactic ester ${\mathrm{CH}}_3-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-{\mathrm{CH}}_2\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}{\mathrm{OC}}_2{\mathrm{H}}_5$ will give iodoform test

$\mathrm{Reason} :$ It contains ${\mathrm{CH}}_3-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-$group

In the following reaction

${\mathrm{CH}}_3\mathrm{CHO}+{\mathrm{NH}}_2·{\mathrm{NH}}_2\to \mathrm{A}\stackrel{\mathrm{B}}{\to }{\mathrm{CH}}_3{\mathrm{CH}}_3+{\mathrm{N}}_2$

Identify $\mathrm{A}$ and $\mathrm{B}$.

Maior product $\text{'}\mathrm{X}\text{'}$ is 

$\mathrm{Assertion}:$ Benzaldehyde is less reactive in comparison to ethanol towards nucleophilic attack.

$\mathrm{Reason}:$ All the carbon atoms of benzaldehyde are ${\mathrm{sp}}^2-$hybridised.

$\mathrm{Assertion}:$ 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: