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Haloalkanes and Haloarenes
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Polyhalogen compounds
JEE Main level
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Difficulty 2 of 3
hx196
Select the correct matches of Freon number with formula (rule of 90).
A
Freon-22 :
CHClF
X
2
B
Freon-11 :
CCl
X
3
F
C
Freon-12 :
CCl
X
2
F
X
2
D
Freon-13 :
CCl
X
2
F
X
2
Answer: A, B, C
Freon-11: 101 gives C1 H0 F1, so
CCl
X
3
F
. Freon-12:
CCl
X
2
F
X
2
. Freon-22: 112 gives C1 H1 F2, so
CHClF
X
2
. Freon-13: 103 gives C1 H0 F3, which is
CClF
X
3
, not
CCl
X
2
F
X
2
.
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