Which of the following has two $π$ bonds and planar structure?

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$C_{2} H_{2}$

All of these

${SO}_{2}$

${CO}_{2}$

answer is D.

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Detailed Solution

There are 3 and 2 bonds in acetylene $C_{2} H_{2}$ . ${CO}_{2}$ will have $2 σ, 2 π bonds$ . The molecule of sulphur dioxide has two two-bonds and one single pair of electrons.
These compounds are all more crystalline in nature.

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