(a) (i) Write the reaction involved in Cannizaro's reaction. (ii) Why are the boiling point of aldehydes and ketones lower than that of corresponding carboxylic acids ? (iii) An organic compound 'A' with molecular formula $\text{C}_5\text{H}_8\text{O}_2$ is reduced to n-pentane with hydrazine followed by heating with $\text{NaOH}$ and Glycol. 'A' forms a dioxime with hydroxylamine and gives a positive Iodoform and Tollen's test. Identify 'A' and give its reaction for Iodoform and Tollen's test.