Question

Which of these salts on strong dry
heating evolves a mixture of
colourless gases?
(1 Point)
(i) CaCo3
(ii) Pb(NO3)2
(iii) FeSO4
(iv) KC103​

Answer 1

Answer:

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Explanation:

ANSWER

On heating, ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO4 ) is formed. So their colour changes from light green to white.

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(iii) FeSO4