Assertion: Nitrogen has five valence electrons
Reason: The electron configuration for nitrogen is $1 s^{2} 2 s^{2} 2 p^{6}$

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

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Both Assertion and Reason are correct but the Reason is incorrect explanation of the Assertion

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The Assertion is correct but the Reason is incorrect

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The Assertion is incorrect but the Reason is correct

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Both Assertion and Reason are incorrect

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Solution

The correct option is C The Assertion is correct but the Reason is incorrect
Atomic number of nitrogen is 7. Thus, it has five valence electrons. Its electronic configuration is $1 s^{2} 2 s^{2} 2 p^{3}$ .

Hence, the correct option is C.

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Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

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Assertion: Nitrogen has five valence electronsReason: The electron configuration for nitrogen is 1s22s22p6

The correct option is C The Assertion is correct but the Reason is incorrectAtomic number of nitrogen is 7. Thus, it has five valence electrons. Its electronic configuration is 1s22s22p3.Hence, the correct option is C.

Assertion: Nitrogen has five valence electrons
Reason: The electron configuration for nitrogen is $1 s^{2} 2 s^{2} 2 p^{6}$

The correct option is C The Assertion is correct but the Reason is incorrect
Atomic number of nitrogen is 7. Thus, it has five valence electrons. Its electronic configuration is $1 s^{2} 2 s^{2} 2 p^{3}$ .

Hence, the correct option is C.