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Write a short note on Hoffman: bromamide degradation.
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$Ni _{( s )}+2 Ag _{( aq )}^{+}(1 M ) \longrightarrow Ni ^{2+}{ }_{\text {(aq) }}(1 M )+2 Ag _{\text {(s) }}$ at $25^{\circ} C ; E _{ Ni }^0=-0.25 V$ and $E _{ Ag }^0=0.799 V$
→$Ni _{( s )}+2 Ag _{( aq )}^{+}(1 M ) \longrightarrow Ni ^{2+}{ }_{\text {(aq) }}(1 M )+2 Ag _{\text {(s) }}$ at $25^{\circ} C ; E _{ Ni }^0=-0.25 V$ and $E _{ Ag }^0=0.799 V$
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(a) Phosphorous pentachloride (b) Copper (c) Potassium chlorate.