Chemistry
Grade-10
Easy

Question

Assertion: Al2O3, is an amphoteric oxide.
Reason: Al2O3  form salt and water when reacts with acid as well as a base.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.

hintHint:

Both A and R are true, and R is the correct explanation of A

The correct answer is: Both A and R are true and R is the correct explanation of A.


    Aluminium oxide(Al2O3) is an amphoteric substance, as it reacts with both acids and bases to produce salt and water. On reacting Al2O3 with HCl we get aluminium chloride as the salt and water as a byproduct.

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