Chemistry, asked by adpoav, 8 months ago

Can you please help me out

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Answered by RajvanshiC

1

Explanation:

hello mate...

9.. No3 is an oxidising agent...as In NO3 oxidizing no. of N is 6 but in NH4 ..it is 4 ...this means there reduction take place..

H2S is a reducing agent as..in h2s oxidation no. of S is -2 but in Hso4 it is +7....it means oxidation take place..

10. marble is CaCo3...and as we know air contain some acids...Due to pollution ...so it reacts with caco3 .. result in corrosion...

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Answered by Anonymous

0

Explanation:

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