Arrange the following compounds in the correct order of their boiling points:
$(I) \, CH_3CH_2CH_2CH_2OH$
$(II) \, CH_3CH_2CH_2CHO$
$(III) \, CH_3CH_2CH_2COOH$

Benzocaine has been used as a component of appetite suppressants,burn and sunburn remedies. Benzocaine is:

The major product in the following reaction is

What are $\underline{A}, \underline{B}, \underline{C}$ in the following reactions?
$(I)$ $(CH_3 CO_2)_2 Ca \stackrel{\Delta}{\longrightarrow} \underline{A}$
$(II)$ $CH_3 CO_2 H \underset{\text{Red P}}{\stackrel{HI}{\longrightarrow}} \underline{B}$
$(III)$ $2 CH_3 CO_2 H \stackrel{P_4 O_{10}}{\longrightarrow} \underline{C}$
$\underline{A} \quad \underline{B} \quad \underline{C}$

With reference to the scheme given,which of the given statement$(s)$ about $T$,$U$,$V$ and $W$ is (are) correct?
$A$. $T$ is soluble in hot aqueous $NaOH$
$B$. $U$ is optically active
$C$. Molecular formula of $W$ is $C_{10}H_{18}O_4$
$D$. $V$ gives effervescence on treatment with aqueous $NaHCO_3$

The products $A$ and $B$ in the following reaction sequence are: