Give reason-:
(a)White silver chloride turns grey in sunlight (b)Brown coloured copper powder on heating in air turns into black coloured substance (c) Few drops of dilute sulphuric acid is added to water during its electrolysis.
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Answer:
(a) due photolytic decomposition that breaks Ag and Cl2 (b) due to thermal decomposition (c) due make it conductive as to make it a better conductor.
Explanation:
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