Q57.The reagent(s) required for the following conversion are: (1) (i) NaBH4 , (ii) Raney Ni/H2 , (iii) H3O+ (2) (i) LiAlH4 , (ii) H3O+ (3) (i) B2H6 , (ii) DIBAL −H, (iii) H3O+ (4) (i) B2H6 , (ii) SnCl2/HCl, (iii) H3O+
What This Question Tests
This question requires knowledge of multi-step organic synthesis, specifically differentiating between various reducing agents and their specificity to convert an ester to a nitrile and then to an aldehyde, followed by reduction to alcohol (implied by typical choices for these conversions).
Concepts Tested
📚 NCERT Sections This Tests
7.21 — Name The Reagents Used In The Following Reactions:
Chemistry Class 12 · Chapter 7
7.21 Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.
7.13 — Show How Will You Synthesise:
Chemistry Class 12 · Chapter 7
7.13 Show how will you synthesise: (i) 1-phenylethanol from a suitable alkene. (ii) cyclohexylmethanol using an alkyl halide by an SN2 reaction. (iii) pentan-1-ol using a suitable alkyl halide?
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
📋 Question Details
- Chapter
- Organic: Aldehydes Ketones Carboxylic Acids
- Topic
- Preparation of Alcohols/Amines from Nitriles
- Year
- 2018
- Shift
- 15 Apr Shift 1 Online
- Q Number
- Q57
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 12: Aldehydes, Ketones and Carboxylic Acids; Ch 13: Amines
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