MCQ
Which is not paramagnetic
- A${O_2}$
- B$O_2^ + $
- ✓$O_2^{2 - }$
- D$O_2^ - $
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Statement- $I$: Along the period, the chemical reactivity of the element gradually increases from group $1$ to group $18$.
Statement - $II$: The nature of oxides formed by group $1$ element is basic while that of group $17$ elements is acidic.In the the light above statements, choose the most appropriate from the questions given below:
$CH_3 (CH_2)_8CH_2Br \xrightarrow[benzene]{KCN} CH_3 (CH_2)_8CH_2CN$