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Chemistry CBSE Live product
Class 10
Acids, bases and salts
Annual Revision II - Acids, bases and salts
7.
Crystals
Question:
2
m.
Answer the following question:
Sujitha was performing an experiment in her chemistry lab. She took some crystals of \(FeSO_4.7H_2O\) in a test tube and heated them gently.
i.
What is the colour of anhydrous \(FeSO_4\) after heating?
Blue
Brown
White
Green
ii.
The green colour of \(FeSO_4.7H_2O\) is due to
ferrous ions in the anhydrous salt
sulphate ions
water of crystallisation around ferrous ions
free hydrogen ions
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