Are the following reactions spontaneous non-spontaneous or, Ask an Expert

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1. Are the following reactions spontaneous, non-spontaneous, or not possible?

a) Sn4+ + Pb => Sn2+ + Pb2+
b) Ni2+ + Br2 => Ni + 2Br-
c) Co2+ + 2I- => Co + I2

2, which metal can reduce Pb2+ but not Ni2+?

3. which substance can oxidize I- but not H2O2?

4. which substnace is more highly reduced? MnO2 or MnO4-

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Category:- Chemistry
Reference No.:- M9676964

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