Key Idea Metal oxides are basic, non-metal oxides are acidic while semi-metal oxides are amphoteric in nature. Thus, the basic character of oxides decreases across the period and increases down the group. The correct match of oxide with its property are as follows: Na2O - Basic Al2O3− Amphoteric N2O - Neutral Cl2O7 - Acidic Thus, option (4) is correct.
NEET UG 2019 — Chemistry Inorganic Chemistry
2019mcqmedium
Match the oxide given in column A with its property given in column B. 
Which of the following options has all correct pairs?
Official previous-year question
Held on 30 Apr 2019 · Verified 9 Jul 2026.
Options
- A
1 - (ii), 2 - (i), 3 - (iv), 4 - (iii)
- B
1 - (iii), 2 - (ii), 3 - (i), 4 - (iv)
- C
1 - (i), 2 - (ii), 3 - (ii), 4 - (iii)
- D
1 - (ii), 2 - (iv), 3 - (i), 4 - (iii)
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