MCQ
For the following Newman projection


- A

- ✓

- C

- D








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$X$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^6},\,\,4{s^2}$
and $Y$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^5}$
The compound formed by combination of $X$ and $Y$ is
