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AIIMS 2007
Exam
AIIMS
Year
2007
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2007 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Assertion : Ozone is an allotrope of oxygen. Reason : Oxygen is...

Assertion : Ozone is an allotrope of oxygen. Reason : Oxygen is bluish colour liquid and in singlet state it is more paramagnetic.

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

Oxygen is a colourless, odourless and tasteless gas. It is paramagnetic in gaseous, liquid and solid states. It can be liquefied to a pale blue liquid by compressing the gas at a very low temperature. Its allotropic modification is ozone.
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