Question

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Plss answer it

If u know all four then answer all

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Answer 1

here is the answer.....

a. on heating lead nitrate it decomposes into lead monoxide,nitrogen dioxide and oxygen. No2 is liberated along with O2 as a reddish brown gas.

b. photolytic decomposition reaction takes place when silver chloride is exposed to sunlight.

c. hydrogen peroxide is powerful oxidizing agent.when exposed to sunlight it decomposes much faster.

d. when hydrogen sulphide is passed through copper sulphate solution a black precipitate of copper sulphide is formed along with sulphuric acid.

hope this will help u....

Answer 2

concise chemistry class 9 ch 2.

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