Reactions of aldehydes and ketones

Compound which gives cannizzaro reaction?

$\text{HCHO}\stackrel{\text{Conc NaOH}}{\to }\text{(x) + (y)}$

Given reaction is an example of

$\text{HCHO}\stackrel{\text{Conc NaOH}}{\to }\text{(x) + (y)}$

Given reaction is an example of

$\text{HCHO}\stackrel{\text{Conc NaOH}}{\to }\text{(x) + (y)}$

Oxidation number of carbon changes from

Reagent responsible for given conversion will be

 

Total number of aldol condensation products are (excluding stereoisomer)

 
Structure of $\left(\text{x}\right)$ is:

Aldol addition can be

Aldol addition can be

 ; (X) is

Write the name of following chemical reactions.

(i) Aldehydes which do not contain an  $\mathrm{\alpha }-$hydrogen atom, when treated with a concentrated alkali solution undergo self-oxidation–reduction.

(ii) Carboxylic acids react with chlorine or bromine in the presence of phosphorous to give compounds in which a hydrogen atom is replaced by a halogen atom.

Identify $\mathrm{A}$ to $\mathrm{E}$ in the following series of reactions: 

$\mathrm{A}\stackrel{\left[\mathrm{O}\right]}{\to } \mathrm{B} \stackrel{\mathrm{Ca}{\left(\mathrm{OH}\right)}_2}{\to } \mathrm{C} \underset{-{\mathrm{CaCO}}_3}{\overset{\mathrm{Distillation}}{\to }} \mathrm{D} \underset{ \left[2\mathrm{H}\right]}{\overset{{\mathrm{LiAlH}}_4}{\to }} \mathrm{E} \stackrel{\mathrm{HBr}}{\to } {\mathrm{CH}}_3-\mathrm{CH}\left(\mathrm{Br}\right)-{\mathrm{CH}}_3$

In Cannizzaro reaction given below

Then, which of the following is correct about the rate determining step?