The number of sigma bonds in o-xylene is | vedclass

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Question

(D) The chemical formula of $o$-xylene is $C_8H_{10}$.Structure: $A$ benzene ring with two methyl groups at the ortho $(1,2)$ positions.Total $\sigma$

Vedclass · Accepted Answer

$18$

Vedclass · Answer

(D) The chemical formula of $o$-xylene is $C_8H_{10}$.Structure: $A$ benzene ring with two methyl groups at the ortho $(1,2)$ positions.Total $\sigma$ bonds = (bonds in benzene ring) + (bonds in two methyl groups) + (bonds between ring and methyl groups).- $6$ $C-C$ bonds in the ring (including $3$ single and $3$ double,where each double bond has $1 \sigma$ and $1 \pi$ bond).- $4$ $C-H$ bonds on the ring.- $6$ $C-H$ bonds in the two methyl groups ($3$ per group).- $2$ $C-C$ bonds connecting the methyl groups to the ring.Total $\sigma$ bonds = $6$ (ring $C-C$) + $4$ (ring $C-H$) + $6$ (methyl $C-H$) + $2$ (methyl-ring $C-C$) = $18$.Thus,the correct option is $D$.

The number of $\sigma$ bonds in $o$-xylene is

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