Q50.In the following reactions, ZnO is respectively acting as a/an, (i) ZnO + Na2O →Na2ZnO2 (ii) ZnO + CO2 →ZnCO3 (1) base and base. (2) acid and acid. (3) acid and base. (4) base and acid.
What This Question Tests
This question tests the understanding of the amphoteric nature of zinc oxide (ZnO) by requiring identification of its role (acid or base) in reactions with a basic oxide (Na2O) and an acidic oxide (CO2).
Concepts Tested
📚 NCERT Sections This Tests
7.14 — Give Two Reactions That Show The Acidic Nature Of Phenol. Compare Acidity
Chemistry Class 12 · Chapter 7
7.14 Give two reactions that show the acidic nature of phenol. Compare acidity of phenol with that of ethanol.
7.17 — Give Equations Of The Following Reactions:
Chemistry Class 12 · Chapter 7
7.17 Give equations of the following reactions: (i) Oxidation of propan-1-ol with alkaline KMnO4 solution. (ii) Bromine in CS2 with phenol. (iii) Dilute HNO3 with phenol. (iv) Treating phenol wih chloroform in presence of aqueous NaOH.
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.
📋 Question Details
- Chapter
- p-block Elements
- Topic
- Amphoteric nature of oxides
- Year
- 2017
- Shift
- 02 Apr
- Q Number
- Q50
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 7: p-block Elements
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