MCQ
Which one of the following is paramagnetic
- A$Zn^{2+}$
- ✓$Ni^{2+}$
- C$Cu^{+}$
- Dnone of the above
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$(I)$ $NO + Br_2 \rightleftharpoons NOBr_2 $ ........ Fast
$(II)$ $NOBr_2 + NO \rightarrow 2NOBr$ ......... Slow
The overall order of this reaction is