Give reasons :
(a) White silver chloride turns grey in sunlight.
(b) Brown coloured copper powder on heating in air turns into black coloured substance.
Answers
Answered by
30
Answer:
A) Thermal Decomposition Reaction .
silver decomposes to black colour
Answered by
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ANSWER
a)
When silver chloride ( white ) is exposed to sunlight then photo - decomposition take place so, that silver chloride breaks into silver metal ( grey ) and chlorine gas is released.
b)
copper substance ( brown ) when heated in air then it undergoes oxidation due to heating in presence of air that form a new substance copper oxide ( black ) .
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