Preparation of Aldehydes and Ketones

Reagent (x) is

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

$1-$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

An unknown alkene $\left(\mathrm{A}\right)$ reacts with $3$ mole of ${\mathrm{H}}_2$ gas in presence of platinum catalyst to form 1-isopropyl-$4$-methyl cyclohexane. When unknown alkene $\left(\mathrm{A}\right)$ is ozonized and reduced,following product are obtained

The alkene $\left(\mathrm{A}\right)$ is

In the reaction ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COCl}\underset{{\mathrm{H}}_2}{\overset{\mathrm{Pd}/{\mathrm{BaSO}}_4}{\to }}\mathrm{X}$,  the $\mathrm{X}$ is

On hydrolysis in the presence of acid, nitroalkane gives

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 $\mathrm{B}\mathrm{a}\mathrm{S}{\mathrm{O}}_4$ ?

The product obtained when benzene is treated with carbon monoxide and hydrogen chloride in presence of anhydrous ${\mathrm{AICI}}_3$?

Identify the product  X In the following reaction,

$\mathrm{C}{\mathrm{H}}_3\mathrm{C}\mathrm{O}\mathrm{C}\mathrm{l}\mathrm{ }\underset{\mathrm{P}\mathrm{d}/{\mathrm{H}}_2}{\stackrel{\mathrm{ }\mathrm{ }\mathrm{B}\mathrm{a}\mathrm{S}{\mathrm{O}}_4\mathrm{ }\mathrm{ }\mathrm{ }\mathrm{ }}{\to }}X$

 

Which of the following is not synthesized by Rosenmund reduction:

Ethyl methyl ketone is obtained by heating calcium salts of

The Grignard's reagent used to convert Benzonitrile to acetophenone (benzophenone) is:

In the following reaction, $\mathrm{P}$ gives two products $\mathrm{Q}$ and $\mathrm{R}$ each in $40\%$ yield.

If the reaction is carried out with $420 \mathrm{mg}$ of $\mathrm{P}$, the reaction yields $108.8 \mathrm{mg}$ of $\mathrm{Q}$. The amount of $\mathrm{R}$ produced in the reaction is closest to

The major product of the following reaction. 

 is

The name of organic compound ${\mathrm{C}}_4{\mathrm{H}}_6$ that produces carbon dioxide, ethanal and methanal upon treatment with ${\mathrm{O}}_3$ followed by reduction with $\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}$ is:

The major product(s) in the following reactions is/are