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99 Percentile Qs Bank for JEE MainChemistryHaloalkanes and Haloarenes

In the following sequence of reactions, the gaseous species A ,   B ,   D ,   E , respectively, are

Options

  1. ACF ˙ 2 Cl ,   C ˙ l ,   C ˙ l ,   C ˙ lO
  2. BCF ˙ 2 ,   Cl ˙ 2 ,   O ,   Cl ˙
  3. CC ˙ Cl 4 ,   F 2 ,   C ˙ lO 3 ,   Cl ˙ 2
  4. DCl ˙ ,   C ˙ F 2 Cl ,   ClO ˙ ,   Cl ˙

Correct answer

D. Cl ˙ ,   C ˙ F 2 Cl ,   ClO ˙ ,   Cl ˙

Step-by-step solution

The first step is the chlorine release from the CFCs : CF 2 Cl 2 + UV   light → Cl · ( A ) + CF 2 Cl · ( B ) The second step is the catalytic ozone destruction. In this step, one ozone molecule is destroyed. Cl · ( A ) + O 3   → ClO · ( D ) + O 2 Lastly, the chlorine atom is regenerated. ClO · ( D ) + O → Cl ( E ) + O 2    

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