MCQ
Number of two electron can have the same values of …… quantum numbers
- A$1$
- B$2$
- ✓$3$
- D$4$
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$C{H_3} - {(C{H_2})_3} - O - C{H_3}$
$C{H_3} - C{H_2} - O - C{H_2} - C{H_2} - C{H_3}$
$C{H_3} - \mathop {CH}\limits_{\mathop {|\,\,\,\,}\limits_{C{H_3}} } - O - C{H_2} - C{H_3}$ is
$3p_x,\,2s,\,4d_{xy},\,3s,\,4p_z,\,3p_y,\,4s$

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: