Q.

I) Freon-12(CCl2F2 is one of the most common compounds in industrial use.II) DDT contains four chlorine atoms.III) When carbon tetrachloride is released into the air it rises to the atmosphere and depletes the ozone layer.IV) Dichloromethane is not used as a solvent.The correct statements are

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a

II & IV only

b

II & III only

c

I & III only

d

I & IV only

answer is C.

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Detailed Solution

I – Freon 12(CCl2F2) is one of the most common ions in industrial useII. III - When carbon tetrachloride is released into the air it rises to the atmosphere and depletes the ozone layer.IV – CH2Cl2 is used as a solvent
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