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Standard IX
Chemistry
Compounds
How many ammo...
Question
How many ammonium ions are present in a molecule of ammonium sulphate?
A
1
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B
2
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C
3
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D
4
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Solution
The correct option is
B
2
The valency of ammonium ion is 1, whereas that of sulphate ion is 2.
Thus, crisscrossing their valencies, the formula becomes
(
N
H
4
)
2
(
S
O
4
)
.
So, there are 2 ammonium ions present in a molecule of ammonium sulphate.
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