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# NCERT

9.20 Complete the following chemical reactions.

(i)PbS(s)+H_{2}O_{2}(aq)\rightarrow

Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions 

Answers (1)
R Rakesh

(i)PbS(s)+H_{2}O_{2}(aq)\rightarrow PbSO_{4}(s)+H_{2}O(l)

Here hydrogen peroxide oxidizes the lead sulfide, act as an oxidising agent. Hence it is a redox reaction. 

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