Question

Match the following and choose the correct option.

• A. a(i), b(ii), c(iii), d(iv)
• B. a(iv), b(iii), c(ii), d(i)
• C. a(iii), b(ii), c(iv), d(i)
• D. a(i), b(ii), c(iv), d(iii)

Hint:

In organic reactions, identifying the reagent helps in matching with the corresponding reaction.

Answer 1

The Correct Option is C

The question requires matching the reagents from List-I with their corresponding reactions or uses in List-II. Let us analyze each option:

1. (a) [Ag(NH₃)₂]⁺: This is known as Tollens' reagent, used to test for aldehydes. It oxidizes aldehydes to carboxylic acids and is reduced to metallic silver in the process.
   • \((a) \rightarrow (iii) \ \text{Tollens reagent}\)
2. (b) Zn-Hg/HCl: This is used in Clemmensen reduction, which reduces ketones or aldehydes to alkanes.
   • \((b) \rightarrow (ii) \ \text{Clemmensen reduction}\)
3. (c) NH₂-NH₂/KOH: This is known as Wolff-Kishner reduction, which converts ketones or aldehydes to alkanes by removing the oxygen and replacing it with hydrogen.
   • \((c) \rightarrow (iv) \ \text{Wolff-Kishner reduction}\)
4. (d) Cu²⁺/OH⁻: This is used in Fehling's solution, which is employed to differentiate between water-soluble carbohydrates and ketone functional groups, along with some water-soluble sugars.
   • \((d) \rightarrow (i) \ \text{Fehling’s solution}\)

Therefore, the correct matching is \(a(iii), \ b(ii), \ c(iv), \ d(i)\).