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JEE Main202226 Jul 2022Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Boric acid is a weak acid Reason R : Boric acid is not able to release H + ion on its own. It receives OH - ion from water and releases H + ion. In the light of the above statements, choose the most appropriate answer from the options given below.

Options

  1. ABoth A and R are correct and R is the correct explanation of A
  2. BBoth A and R are correct but R is NOT the correct explanation of A
  3. CA is correct but R is not correct
  4. DA is not correct but R is correct

Correct answer

A. Both A and R are correct and R is the correct explanation of A

Step-by-step solution

Boric acid is a weak acid because it does not completely ionize in water or other aqueous solution. It is not able to release H + ions on its own because firstly it receives hydroxide ions OH - from water molecule in order to complete its octet and then it releases H +   ions.

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