How many sigma bonds and pi bonds are present in \( \mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2} \...

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How many sigma bonds and pi bonds are present in \( \mathrm{CH}_{2}=\mathrm{C}=\mathrm{CH}_{2} \) ?
(A) 6 sigma and \( 1 \mathrm{pi} \)
(B) 8 sigma and 0 pi
(C) 4 sigma and 4 pi
(D) 6 sigma and \( 2 \mathrm{pi} \)
\( \mathrm{P} \)
W.
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