NEET UG CHEMISTRY MCQ: ENVIRONMENTAL CHEMISTRY

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Analyzing +4 | -1

Assertion: London smog is oxidising in nature.
Reason: London smog contains

{O}_3, {NO}_2

and hydrocabons.

View answer and explanation

Correct option: D

Both Assertion and Reason are false

Option D (Both Assertion and Reason are false) is correct because London smog is reducing in nature and contains sulfur oxides and particulate matter, not ozone, nitrogen dioxide and hydrocarbons.

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Average ozone concentration in Jakarta, Indonesia have been reported to be

0.015 \mathrm{~mg} \mathrm{~m}^{-3}

and those in Tokyo, Japan are

20 \mathrm{~ppmV}

. What is the approximate ratio of these two values, when expressed in the same unit? Increasing skin cancer and high mutation rate are due to S-I: Aldehydes are one of the constituents of photochemical smog.
S-II: Aldehydes are produced by photochemical oxidation of hydrocarbons by ozone. Which of the following statements is false? Most suitable atmospheric reaction which is relating to that of disfiguring of Taj Mahal is: Formation of London smog takes place in