Tischenko reaction is a modification of

$x$ is the product obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid followed by hydrolysis. $y$ is the product obtained from but$-2-$ene by ozonolysis followed by hydrolysis. From the following, which product is not obtained when one mole of $x$ and one mole of $y$ react with each other in the presence of alkali followed by heating?

Which of the following reactions is correctly matched?

The Cannizzaro reaction is not given by . . . . . . .

An organic compound contains $69.77 \%$ carbon,$11.63 \%$ hydrogen and the rest is oxygen. The molecular mass of the compound is $86$. It does not reduce Tollens' reagent but forms an addition compound with sodium hydrogensulphite and gives a positive iodoform test. On vigorous oxidation,it gives ethanoic acid and propanoic acid. Write the possible structure of the compound.

Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :