Verified Solution • 2025–26 Session moderate

QJEEM23Ch8f2d: JEE Main 2023 Chemistry - Class 11 JEEM23Ch8f2d Solution: Given below are two statements, one is labelled as Assertion A…

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

Assertion A : Loss of electron from hydrogen atom results in nucleus of ∼1.5×10−3pm\sim 1.5 \times 10^{-3} \mathrm{pm} size.

Reason R : Proton (H+)\left(\mathrm{H}^{+}\right) always exists in combined form.

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

Multiple Choice Options

  • A Both A\mathbf{A} and R\mathbf{R} are correct and R\mathbf{R} is the correct explanation of A\mathbf{A}
  • B A is correct but R is not correct
  • C A is not correct but R is correct
  • D Both A\mathbf{A} and R\mathbf{R} are correct but R\mathbf{R} is NOT the correct explanation of A\mathbf{A}

Step-by-Step Verified Solution

Size of nucleus is of order

1.5×10−15 m1.5 \times 10^{-15} \mathrm{~m} or 1.5×10−3pm1.5 \times 10^{-3} \mathrm{pm}

H+\mathrm{H}^{+} always exists in combined form.

There is no relation between two statements and hence option (D) is the answer.

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