A) \[{{H}_{2}}O\]
B) Ni
C) \[{{H}^{+}}\]
D) \[C{{r}_{2}}O_{7}^{2-}\]
Correct Answer: B
Solution :
[b] \[(Ni\to N{{i}^{2+}})Ni\] loses electrons hence act as reducing agent.You need to login to perform this action.
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