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AIIMS 2011
Exam
AIIMS
Year
2011
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

AIIMS 2011 · Chemistry · Classification of Elements and Periodicity in Properties

Assertion : R_3 P=O exists but R_3 ~N=O does not exist. Reason : P...

Assertion : R3P=OR_3 \mathrm{P}=\mathrm{O} exists but R3 N=OR_3 \mathrm{~N}=\mathrm{O} does not exist. Reason : P\mathrm{P} is more electronegative than N\mathrm{N}.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

The electronegativity of N(3.0)\mathrm{N}(3.0) is much higher than P(2.1)P(2.1).
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