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Assertion: Emission of light as result o...

Assertion: Emission of light as result of exposure of `P` to air in night is called phosphorescence.
Reason: Phosphorus burns in `O_(2)` to give `P_(2)O_(5)` and conversion of chemical energy into light energy producing cold light and the phenomenon is called chemiluminiscence.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but the reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
The phenomenon is called chemiluminiscence.
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A2Z-CHEMICAL KINETICS-Section B - Assertion Reasoning
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  10. Assertion: Emission of light as result of exposure of P to air in nigh...

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  12. Assertion (A) : The rate constant of a zero order reaction has same un...

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  13. Assertion: In a zero order reaction, if concentration of the reactant ...

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  15. Assertion: 50% of reaction is completed in 50 sec, therefore, 75% of t...

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  16. Assertion: For a first order reaction, the concentration of the reacta...

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  17. Assertion: Temperature coefficients of most of the reactions lies betw...

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