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\( \text{C}_2\text{H}_5\text{Br} \xrightarrow{\text{alc. KOH}} \text{A} \xrightarrow[\text{CCl}_4]{\text{Br}_2} \text{B} \xrightarrow[\text{Excess}]{\text{KCN}} \text{C} \xrightarrow[\text{Excess}]{\text{H}_3\text{O}^+} \text{D}\) 
Acid D formed in above reaction is:

Match List-I with List-II.

Choose the correct answer from the options given below:

Given below are two statements :
Statement (I) : \( \mathrm{S}_{\mathrm{N}}2 \) reactions are ‘stereospecific’, indicating that they result in the formation of only one stereo-isomer as the product
Statement (II) : \( \mathrm{S}_{\mathrm{N}}1 \) reactions generally result in formation of product as racemic mixtures.
In the light of the above statements, choose the correct answer from the options given below

The total number of hydrogen atoms in product \( A \) and product \( B \) is ______.

Alkyl halide is converted into alkyl isocyanide by reaction with:

.

Total number of isomeric compounds (including stereoisomers) formed by monochlorination of \( 2 \)-methylbutane is _________.

Which one of the following reactions is NOT possible?

Given below are two statements:
Statement – I: High concentration of strong nucleophilic reagent with secondary alkyl halide which do not have bulky substituents will follow \( \mathrm{S_N}{^2} \) mechanism.
Statement – II: A secondary alkyl halide when treated with a large excess of ethanol follows \( \mathrm{S_N}{^1} \) mechanism.
In the light of the above statements, choose the most appropriate from the options given below:

Identify the major product in the following reaction.

The number of optical isomers in following compound is ______.

Consider the above chemical reaction. Product “A” is:

The product \( (C) \) in the below mentioned reaction is: