Question:

Match List-I with List-II.

List-IList-II
(A) N2(g) + 3H2(g) → 2NH3(g)(I) Cu
(B) CO(g) + 3H2(g) → CH4(g) + H2O(g)(II) Cu/ZnO – Cr2O3
(C) CO(g) + H2(g) → HCHO(g)(III) FexOy + K2O + Al2O3
(D) CO(g) + 2H2(g) → CH3OH(g)(IV) Ni

Choose the correct answer from the options given below :

Updated On: Sep 24, 2024
  • (A) – (II), (B) – (IV), (C) – (I), (D) – (III)
  • (A) – (II), (B) – (I), (C) – (IV), (D) – (III)
  • (A) – (III), (B) – (IV), (C) – (I), (D) – (II)
  • (A) – (III), (B) – (I), (C) – (IV), (D) – (II)
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The Correct Option is C

Solution and Explanation

Here, we have to match the reactions with their correct catalyst :
∴ Option (C) is correct option.

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Concepts Used:

Preparation - Alcohols, Phenols and Ethers

Alcohols, phenols, and ethers are organic compounds that can be prepared by various methods.

Preparation of Alcohols:

  1. Direct hydration of alkenes: Alcohols can be prepared by the addition of water to an alkene in the presence of a strong acid catalyst.
  2. Reduction of carbonyl compounds: Alcohols can be prepared by the reduction of aldehydes, ketones, or carboxylic acids using reducing agents like NaBH4 or LiAlH4.
  3. Grignard reaction: Alcohols can be prepared by reacting Grignard reagents with carbonyl compounds.
  4. Hydroboration-oxidation: Alcohols can be prepared by the hydroboration of alkenes followed by oxidation with an oxidizing agent like H2O2.

Preparation of Phenols:

  1. Hydrolysis of diazonium salts: Phenols can be prepared by the hydrolysis of diazonium salts, which are formed by the reaction of aniline with nitrous acid.
  2. Oxidation of sulfonic acids: Phenols can be prepared by the oxidation of sulfonic acids using strong oxidizing agents like potassium permanganate or chromic acid.

Preparation of Ethers:

  1. Williamson synthesis: Ethers can be prepared by the reaction of an alkoxide ion with a primary alkyl halide or tosylate in the presence of a strong base like NaOH or KOH.
  2. Dehydration of alcohols: Ethers can be prepared by the dehydration of alcohols in the presence of a strong acid catalyst like H2SO4.

In summary, alcohols, phenols, and ethers can be prepared by a variety of methods, including hydration, reduction, Grignard reaction, hydroboration-oxidation, hydrolysis, oxidation, Williamson synthesis, and dehydration. The choice of the method depends on the availability of starting materials, the desired product, and the conditions of the reaction.

Also Read: Classification of Alcohols, Phenols and Ethers