A) \[C{{o}^{+2}}\]
B) \[N{{i}^{+2}}~~~~~~\]
C) \[C{{r}^{+3}}\]
D) \[C{{u}^{+2}}\]
Correct Answer: C
Solution :
Chromium ion gives in hot and cold. Oxidising and reducing flame green-colour.You need to login to perform this action.
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