The product $(A)$ obtained is:

In the following sequence of reactions,a compound $A$ (molecular formula $C_{6}H_{12}O_{2}$) with a straight chain structure gives a $C_{4}$ carboxylic acid. $A$ is :
$A$ $\xrightarrow{LiAlH_{4} / H_{3}O^{+}} B$ $\xrightarrow{\text{Oxidation}} C_{4} \text{ carboxylic acid}$

Which $\beta$-keto acid shown will not undergo decarboxylation?

The conversion of $CH_{3}CH_{2}COOH$ to the product shown below can be accomplished by:
$CH_{3}CH_{2}CH(OCH_{2}CH_{2}O)$

Given below are two statements:
Statement $I:$ Ethyl pent$-4-$yn$-$oate on reaction with $CH_{3}MgBr$ gives a $3^{\circ}$ alcohol.
Statement $II:$ In this reaction,one mole of ethyl pent$-4-$yn$-$oate utilizes two moles of $CH_{3}MgBr$.
In the light of the above statements,choose the most appropriate answer from the options given below:

In Column - $I$ the structure of the compound is given,in Column - $II$ the boiling point,and in Column - $III$ the functional group is given. Find the correct match for Column - $I$ from Column - $II$ and Column - $III$.

Column - $I$ (Formula)	Column - $II$ (Boiling Point)	Column - $III$ (Group)
$(A)$ $CH_3COOH$	$(i)$ $309 \ K$	$(m)$ Alkane
$(B)$ $CH_3CH_2CH_2OH$	$(ii)$ $322 \ K$	$(n)$ Ketone
$(C)$ $CH_3COCH_3$	$(iii)$ $329 \ K$	$(o)$ Aldehyde
$(D)$ $CH_3CH_2CHO$	$(iv)$ $391 \ K$	$(p)$ Carboxylic acid
$(E)$ $CH_3CH_2CH_2CH_2CH_3$	$(v)$ $370 \ K$	$(q)$ Alcohol