Preparation of Aldehydes and Ketones

Reagent (x) is

Which of the following on heating with aqueous KOH, produces acetaldehyde?

Which of the following reactions will give benzophenone as major product?

(A) Benzoyl chloride $+$ Benzene $+{\mathrm{AlCl}}_3$ (anhyd.)

(B) Benzoyl chloride $+$ Phenylmagnesium bromide (excess)

(C) Benzoyl chloride $+$ Diphenyl cadmium

Consider following reaction, where

(A) The change in the functional group and

(B) The corresponding change in the hybridization from starting to the final product $\mathrm{A}$ and $\mathrm{B}$ are

${\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{N}\underset{\begin{array}{c}\left(\mathrm{i}\right) {\mathrm{H}}_3{\mathrm{O}}^{+}\\ \left(\mathrm{ii}\right) \mathrm{HI}+\mathrm{Red} \mathrm{P}\end{array}}{\overset{\left(\mathrm{i}\right) {\mathrm{SnCl}}_2,\mathrm{HCl}}{\to }}$

The major product formed in the following reaction sequence is

${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2 \underset{\begin{array}{c}\left(\mathrm{iii}\right) {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CHO}\\ \left(\mathrm{iv}\right) {\mathrm{CrO}}_3\end{array}}{\overset{\begin{array}{c}\left(\mathrm{i}\right) \mathrm{HBr}, \mathrm{peroxide}\\ \left(\mathrm{ii}\right) \mathrm{Mg}\end{array}}{\to }}$

The major product in the following reactions is

The major product of the following reaction sequence is

$1-$methylcyclohexa$-1, 3-$diene on reductive ozonolysis with $\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}$ yields products A and B.The total number of ${\mathrm{sp}}^2$hybridized carbons in A and B are

Isobutyl alcohol and secondary butyl alcohol can be distinguished by-

In the following reaction,

$\mathrm{X}$ and $\mathrm{Y}$ are :

In the reaction,

$\mathrm{X}$ and $\mathrm{Y}$ are :

On hydrolysis in the presence of acid, nitroalkane gives

Complete the following reaction: 

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_3 + {\mathrm{CrO}}_3 \stackrel{\mathrm{acetic} \mathrm{anhydride}}{\to } ?$

Identify the product of the following reaction:

The name of the reaction given below is:
  
 

What are the products $\mathrm{A},\mathrm{B},\mathrm{C},\mathrm{D}$ in the following reaction?

In the Rosenmund's reaction, what is the role of $\mathrm{B}\mathrm{a}\mathrm{S}{\mathrm{O}}_4$ ?