Which of the following compounds would not give tert-butyl alcohol when treated with excess methylmagnesium bromide $(CH_3MgBr)$ followed by acid?

Which one of the following is not formed when acetone reacts with $2-$pentanone in the presence of dilute $NaOH$ followed by heating?

In the following reaction sequence,the product $D$ is:
$CH_3COOH$ $\xrightarrow{SOCl_2} A$ $\xrightarrow[AlCl_3]{C_6H_6} B$ $\xrightarrow{HCN} C$ $\xrightarrow{H_2O} D$

$A$ compound $A$ has the molecular formula $C_2Cl_3OH$. It reduces Fehling's solution and on oxidation,it gives a monocarboxylic acid $B$. Compound $A$ is also obtained by the reaction of ethanol with chlorine. What is $A$?

Which of the following reactions represents the Wolff-Kishner reduction?

Wolff-Kishner reduction reduces which of the following groups?