MCQ
How many pi bonds are present in phosgene?
- A1
- B2
- C3
- D4
Explanation:
From the image we can see that there is only 1 pi-bond present in phosgene (cabonyl chrolide).

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|
Column $I$ |
Column $II$ |
| $A$. Inert-gas elements | $1.\left( {n - 1} \right){d^{1 - 10}}\,n{s^{1 - 2}}$ |
| $B$. Transition elements | $2\,. ns^2\,np^6$ |
| $C$. Inner-transition elements | $3.\left( {n - 2} \right){f^{1 - 14}}\,\left( {n - 1} \right){s^2}{p^6}{d^{0 - 1}}\,n{s^2}$ |
$(1)$ $n = 1,\,l = 0,\,m = 0$
$(2)$ $n = 2,\,l = 0,\,m = 0$
$(3)$ $n = 2,\,l = 1,\,m = 1$
$(4)$ $n = 3,\,l = 2,\,m = 0$
$(5)$ $n = 3,\,l = 2,\,m = 0$