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JEE Main 201912 JanuaryEvening Shift
Exam
JEE Main
Year
2019
Date
12 January
Shift
Evening Shift
Subject
Chemistry
Chapter
Environmental Chemistry

JEE Main 2019 · 12 January · Evening Shift · Chemistry · Environmental Chemistry

The compound that is NOT a common component of photochemical smog...

The compound that is NOT\text{NOT} a common component of photochemical smog is:The compound that is NOT a common component of photochemical smog is:

Options

  1. AO3{\text{O}}_{3}
  2. BCF2Cl2\text{C}{\text{F}}_{2}\text{C}{\text{l}}_{2}
  3. C

    If n arithmetic means are inserted between a and 100 such that the ratio of the first mean to the last mean is 1: 7 and

  4. DCH2=CHCHO\text{C}{\text{H}}_{2} = \text{C}\text{H}\text{C}\text{H}\text{O}

Correct answer

B. CF2Cl2\text{C}{\text{F}}_{2}\text{C}{\text{l}}_{2}

Step-by-step solution

Photochemical smog consists of nitrogen oxides, volatile organic compounds, tropospheric ozone, etc., CF2Cl2\text{C}{\text{F}}_{2}\text{C}{\text{l}}_{2} , a chlorofluorocarbon, is not present in photochemical smog, but is a major cause of ozone-layer depletion.
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