MCQ
Which of the following is the most basic oxide ?
- A$SeO_2$
- B$Al_2O_3$
- C$Sb_2O_3$
- ✓$Bi_2O_3$
So the basic nature is
$B i_{2} O_{3}>S b_{2} O_{3}>A l_{2} O_{3}>S e O_{2}$
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$(I)$ $C{H_2} = CH\mathop C\limits^ + HC{H_3}$
$\begin{array}{*{20}{c}} {{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\ {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\ {(II)\,\,\,\,\,\,\,\,\,\,C{H_2} = C - \mathop {{\text{ }}C}\limits^ + {H_2}} \end{array}$
$(III)$ $C{H_3}CH = CH\mathop C\limits^ + {H_2}$