Assertion: The amphoteric behaviour of water is explained by Lewis acid base theory Reason: water acts as…

Assertion: The amphoteric behaviour of water is explained by Lewis acid base theory

Reason: water acts as acid with NH3 and base with H2S

  1. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  2. Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
  3. Assertion is true but Reason is false.
  4. Assertion is false but Reason is true.

Solution

H2O⏟Acid+N¨H3⏟Base→OH-+NH4+

H2O⏟Base +H2SAcid⟶H3O++HS⊖

The amphoteric behaviour of H2O is explained by Brønsted theory not the Lewis acid base theory.

So, we can say Assertion is false, but reason is true.

Asked in: JEE Main 2022 (25 Jun Shift 2)

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