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JEE Main 202226 JulyEvening Shift
Exam
JEE Main
Year
2022
Date
26 July
Shift
Evening Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2022 · 26 July · Evening Shift · Chemistry · p Block Elements (Group 13 & 14)

Given below are two statements: one is labelled as Assertion A and...

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason RR.

Assertion AA : Boric acid is a weak acid

Reason RR : Boric acid is not able to release H+{H}^{+} ion on its own. It receives OH−{OH}^{-} ion from water and releases H+{H}^{+} ion.

In the light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A :

Options

  1. ABoth AA and RR are correct and RR is the correct explanation of AA
  2. BBoth AA and RR are correct but RR is NOT the correct explanation of AA
  3. CAA is correct but RR is not correct
  4. DAA is not correct but RR is correct

Correct answer

A. Both AA and RR are correct and RR is the correct explanation of AA

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+{H}^{+} ions on its own because firstly it receives hydroxide ions OH−{OH}^{-} from water molecule in order to complete its octet and then it releases H+{H}^{+}ions.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A :

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