Question:

Identify the correctly matched sets: 
CO - neutral oxide GeO - acidic oxide PbO - basic oxide
 

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Remember the nature of oxides based on the elements they contain. Non-metal oxides are generally acidic, metal oxides are generally basic, and some oxides are amphoteric.
Updated On: Mar 15, 2025
  • i, iii only
  • ii, iii only
  • i, ii only
  • i, ii, iii
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The Correct Option is C

Solution and Explanation

1. CO (Carbon monoxide):
CO is a neutral oxide. It does not react with either acids or bases under normal conditions.

2. GeO (Germanium monoxide):
GeO is an acidic oxide. It reacts with bases to form salts and water.

3. PbO (Lead(II) oxide):
PbO is amphoteric, meaning it can react with both acids and bases. However, it is predominantly basic in nature.

Therefore, the correctly matched sets are:
i. CO - neutral oxide
ii. GeO - acidic oxide
PbO is amphoteric rather than strictly basic.

Thus, the correct option is (3) i, ii only.

Final Answer:
i, ii only.

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