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Subjects
Science CBSE
Class 10
Chemical reaction and equations
Textbook questions
77.
NCERT Lab Manual I
Exercise condition:
2
m.
Answer the following questions:
1.
Why does the colour of copper sulphate solution change, when an iron nail is dipped in it?
Due to the formation of greenish iron sulphate solution
Due to the formation of reddish iron sulphate solution
Due to the formation of greenish copper sulphate solution
Due to the formation of reddish copper sulphate solution
2.
Why does the following reaction takes place? \(2I^–\)(aq) + \(Cl_2\)(aq) —> \(2l^–\)(aq) + \(I_2\)(solvated).
Displacement reaction
Combination reaction
Decomposition reaction
Oxidation reaction
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