Question

Match the names of reactions given in Column I with the appropriate reactions given in Column II

• A. A = S B = P C = Q D = R
• B. A = C B = R C = S D = P
• C. A = B B = R C = Q D = S
• D. A = R B = P C = S D = Q

Hint:

In substitution reactions, the role of solvents and halides significantly affects the product formation. In Finkelstein's reaction, acetone is used to dissolve the sodium halide, driving the substitution of halides.

Answer 1

The Correct Option is A

The reactions in Column II are given below and can be identified with their respective names from Column I: 1.
Sandmeyer Reaction (A):
This reaction involves the conversion of an aryl halide to the corresponding aryl diazonium salt, followed by its reaction with a copper(I) salt to form a substituted aromatic compound. The reaction in (S) involves a similar process with a halide reacting in the presence of copper(I). 2.
Fittig Reaction (B):
The Fittig reaction is a coupling reaction between an aryl halide and an alkyl halide using sodium metal, resulting in the formation of biaryls. The reaction in (P) corresponds to this process, as it involves a chlorobenzene reacting with sodium. 3.
Swarts Reaction (C):
In this reaction, an alkyl halide reacts with a metal halide (like AgF) to replace the halide group. Reaction (Q) follows this pattern with ethyl chloride and silver fluoride. 4.
Finkelstein Reaction (D):
This is a nucleophilic substitution reaction in which an alkyl halide reacts with sodium halide to form a new halide. In (R), the reaction involves alkyl chloride in the presence of NaI in acetone. Thus, the correct matching of reactions is: \[ \text{A = S, B = P, C = Q, D = R} \]