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Question

Assertion :Statement-1 : In water, orthoboric acid behaves as a weak monobasic Lewis acid. Reason: Statement-2 : In water, orthoboric acid acts as a proton donor.
  1. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
  2. Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
  3. Statement-1 is True, Statement-2 is False
  4. Statement-1 is False, Statement-2 is True

A
Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
B
Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
C
Statement-1 is True, Statement-2 is False
D
Statement-1 is False, Statement-2 is True
Solution
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The correct option is C Statement-1 is True, Statement-2 is False
Orthoboric acid acts as Lewis-acid in water not as proton donar because it completes its octet by accepting OH from water.

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