Assertion : $H N O_{3}$ is a stronger acid than $H N O_{2}$ . Reason: In $H N O_{3}$ , there are two nitrogen to oxygen bonds, whereas in $H N O_{2}$ there is only one.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
$\begin{matrix} Assertion Conjugate bases of {H N O}_{3} and {H N O}_{2} are {N O}_{3} and {N O}_{2} respec tively. {NO}_{3} has 3 resonating structure's where as {N O}_{2}^{-} has only two. So, {N O}_{3}^{-} is more stable than {N O}_{2} which means {H N O}_{3} is stronger acid than {H N O}_{2} . \end{matrix}$

$Reason$

$\begin{matrix} {HNO}_{3} has 3 N-O bonds and {H N O}_{2} has 2 . So,the reason is wrong and assertion is true. \end{matrix}$

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Similar questions

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. $H N O_{3} a n d H_{2} S O_{4}$ mixture.
Reason (R) - OH group in phenol is o-,p-directing.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion :

H N O_{3}

is a stronger acid than

H N O_{2}

. Reason: In

H N O_{3}

, there are two

N - O

bonds whereas in

H N O_{2}

there is only one.

Q. Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells.
Reason: A shell can have maximum

{2n}^{2}

electrons.

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

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Assertion :HNO3 is a stronger acid than HNO2. Reason: In HNO3, there are two nitrogen to oxygen bonds, whereas in HNO2 there is only one.

Assertion : $H N O_{3}$ is a stronger acid than $H N O_{2}$ . Reason: In $H N O_{3}$ , there are two nitrogen to oxygen bonds, whereas in $H N O_{2}$ there is only one.