Question

Please answer all parts of this question
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Answer 1

1) The compound is responsible Chromium sulphate...

2) lactic acid

3)This answer is in the given image.

4)(i) CuCO 3 + H2SO4 => CuSO4+ H2O + CO2

ii) ZnSO4 + Na2 CO3 => Na2So4 + ZnCo3

$hope \: this \: will \: hlp \: u$