JEE · NEET Previous Year Question

The correct statements among to regarding group element oxides are,
(I) Boron trioxide is acidic.
(II) Oxides of aluminium and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

  1. A and only
  2. B, and
  3. C and only
  4. D and only

Correct answer: B

Solution

(b)
(I) Acidic oxide
(II) &- Amphoteric oxide
(III) &Basic oxide

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