Problem: Which of the following are redox reactions?I. CuSO4 + 2NaOH → Cu(OH) 2 + Na 2SO4 II. 2Al + 3MgSO4 → 3Mg + Al 2(SO4)3 III. 2(NH4)3PO4 + 3Ba(NO3)2 → Ba 3(PO4)2 + 6NH4NO3 IV. 2HNO3 + 3H3AsO3 → 2NO + 3H 3AsO4 + H2O

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Problem Details

Which of the following are redox reactions?

I. CuSO4 + 2NaOH → Cu(OH) 2 + Na 2SO4


II. 2Al + 3MgSO4 → 3Mg + Al 2(SO4)3


III. 2(NH4)3PO4 + 3Ba(NO3)2 → Ba 3(PO4)2 + 6NH4NO3


IV. 2HNO3 + 3H3AsO3 → 2NO + 3H 3AsO4 + H2O

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