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Home / Doubts and Solutions/JEE-BASIC/Main/Chemistry

pla answer

Asked by Umesh 4th December 2017, 1:40 PM
Answered by Expert
Answer:
In above question the correct answer is option b) reaction between conc.H2SO4 with zinc metal
Conc.H2SO4 is a strong oxidizer when it reacts with Zn it never gives H2 and always gives three products salt, water and the product of reduction of sulphur.
Zn +2 conc.H2SO4 → ZnSO4 +SO2 + 2H2O
3Zn + 4 conc.H2SO4 → 3ZnSO4 +S + 4H2O
4Zn + conc.H2SO4 → 4ZnSO4 + H2S + 4 H2O
Answered by Expert 4th December 2017, 3:36 PM
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