Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Chlorine exists in two isotopic forms, Cl – 37 and Cl – 35 but its atomic mass is 35.5 . This indicates the ratio of Cl – 37 and Cl – 35 is approximately.
Text Solution
Verified by ExpertsThe correct answer is:
C
Let relative abundance of Cl – 37 = x%
then relative abundance of Cl – 35 = (100 –x)%
Average atomic mass,
37x+ 3500 – 35 x = 3550
x = 25
100 – x = 75
Thus, the ratio of Cl – 37 and Cl – 35 is x : (100 –x) = 25: 75 = 1: 3
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