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Chemistry
The electron gain enthalpy value (in kj mol1) of three halogens, X, Y and Z are respectively -349, -328 and -325. Then X, Y and Z are respectively
Q. The electron gain enthalpy value (in kj mol"1) of three halogens, X, Y and Z are respectively -349, -328 and -325. Then X, Y and Z are respectively
1713
197
Classification of Elements and Periodicity in Properties
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A
F
,
Cl
and
B
r
26%
B
Cl
,
F
and
B
r
52%
C
Cl
,
B
r
and
F
9%
D
B
r
,
Cl
and
F
12%
Solution:
Electron affinity (or electron gain enthalpy) of halogens follows the order