pBlock ElementsII 1 Question 59

Assertion and Reason

Read the following questions and answer as per the direction given below:

(a) Statement I is correct, Statement II is correct, Statement II is the correct explanation of Statement I

(b) Statement I is correct, Statement II is correct, Statement II is not the correct explanation of Statement I

(c) Statement I is correct, Statement II is incorrect

(d) Statement I is incorrect, Statement II is correct

54.

Statement I $\mathrm{HNO} _{3}$ is a stronger acid than $\mathrm{HNO} _{2}$.

Statement II In $\mathrm{HNO} _{3}$, there are two nitrogen to oxygen bonds whereas in $\mathrm{HNO} _{2}$ there is only one.

(1998, 2M)

Show Answer

Answer:

Correct Answer: 54. (a)

Solution:

  1. Both Statement I and Statement II are true and Statement II explains the Statement I appropriately. Nitrate ion $\left(\mathrm{NO} _{3}^{-}\right)$is more stable than nitrite ion:



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