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Chemistry CBSE Live product
Class 9
Atoms and molecules
Writing Chemical Formulae
4.
Fundamental rules for constructing chemical formulas
Question:
2
m.
Choose the best answer:
In the formula \(Fe_2(SO_4)_3\), what does the “\(3\)” outside the bracket indicate?
There are \(3\) iron atoms
Sulphate has a charge of \(3^-\)
The total charge is \(+6\)
There are \(3\) sulphate ions
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