An organic compound $X$ is oxidised by using acidified $K_{2}Cr_{2}O_{7}$. The product obtained reacts with phenyl hydrazine but does not answer the silver mirror test. The possible structure of $X$ is

Glycerol on treatment with oxalic acid at $110 \ ^oC$ forms

$(CH_3)_2CHOH$ $\xrightarrow{PCC} X$ $\xrightarrow[(ii) H_2O]{(i) CH_3MgBr} Y$. What is $Y$?

Which of the following reactions takes place when tertiary butanol is passed over heated copper at $573 \ K$?

Denatured spirit is mainly used as a

Given below are two statements:
Statement $(I)$: The boiling points of alcohols and phenols increase with an increase in the number of $C$ atoms.
Statement $(II)$: The boiling points of alcohols and phenols are higher in comparison to other classes of compounds such as ethers and haloalkanes.
In the light of the above statements,choose the correct answer from the options given below: