Assertion: NO and NO_2 both are paramagnetic | vedclass

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(A) $1$. Assertion: $NO$ has $15$ electrons (odd number),making it paramagnetic. $NO_2$ has $23$ electrons (odd number),making it also paramagnetic. T

Vedclass · Accepted Answer

Assertion & Reason both are correct but Reason is not the correct explanation of Assertion.

Vedclass · Answer

(A) $1$. Assertion: $NO$ has $15$ electrons (odd number),making it paramagnetic. $NO_2$ has $23$ electrons (odd number),making it also paramagnetic. Thus,the Assertion is correct.$2$. Reason: The Brown ring test is used for the detection of nitrate ions $(NO_3^-)$. In this test,$NO_3^-$ is reduced to $NO$ by $Fe^{2+}$ ions,and the $NO$ then reacts with $[Fe(H_2O)_6]^{2+}$ to form the brown complex $[Fe(H_2O)_5(NO)]^{2+}$. Therefore,$NO$ is indeed involved in the Brown ring test. Thus,the Reason is correct.$3$. Conclusion: While both statements are scientifically true,the fact that $NO$ is involved in the Brown ring test does not explain why $NO$ and $NO_2$ are paramagnetic. Therefore,the Reason is not the correct explanation of the Assertion.

Assertion: $NO$ and $NO_2$ both are paramagnetic gases.
Reason: $NO$ gas is responsible for the Brown ring test.

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Assertion: $NO$ and $NO_2$ both are paramagnetic gases.Reason: $NO$ gas is responsible for the Brown ring test.