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UPSC CDS Science Chemistry Questions Part 1
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© examsnet.com
Question : 12
Total: 100
The equivalent weight of
B
a
(
O
H
)
2
is (given, atomic weight of Ba is 137.3)
[2018 CDS-II]
85.7
137.3
154.3
171.3
Validate
Solution:
The molecular mass of
B
a
(
O
H
)
2
= Atomic weight of Ba (137.3) + Atomic weight of Oxygen (16*2) + Atomic weight of Hydrogen (1*2) =
137.3 + 32 + 2 = 171.3
Here, mole factor = 2
Therefore, equivalent weight of
B
a
(
O
H
)
2
=
171.5
2
=
85.7
.
© examsnet.com
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