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AIIMS 2014
Exam
AIIMS
Year
2014
Subject
Botany
Chapter
Environmental Issues

AIIMS 2014 · Botany · Environmental Issues

Assertion : Secondary air pollutants are formed by interaction...

Assertion : Secondary air pollutants are formed by interaction among the primary pollutants and are more toxic. Reason: DDT is a secondary air pollutant.

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

Secondary air pollutants are produced photo-chemically from primary pollutants. Smog, photochemical smog, ozone and PAN all are secondary air pollutants. DDT is a primary soil pollutant.
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