The alkane from below having two secondary hy | vedclass

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(C) secondary $(2^{\circ})$ hydrogen is a hydrogen atom attached to a secondary carbon atom (a carbon atom bonded to two other carbon atoms).Let us an

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$2,2,3,3-$Tetramethylpentane

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(C) secondary $(2^{\circ})$ hydrogen is a hydrogen atom attached to a secondary carbon atom (a carbon atom bonded to two other carbon atoms).Let us analyze the structures:$A$. $4-$Ethyl$-3,4-$dimethyloctane: This structure has five $2^{\circ}$ carbons,resulting in $10$ secondary hydrogens.$B$. $2,2,4,4-$Tetramethylhexane: This structure has two $2^{\circ}$ carbons ($C3$ and $C5$),resulting in $4$ secondary hydrogens.$C$. $2,2,3,3-$Tetramethylpentane: The structure is $CH_3-C(CH_3)_2-C(CH_3)_2-CH_2-CH_3$. The only $2^{\circ}$ carbon is at $C4$,which has two hydrogens attached to it. Thus,it has $2$ secondary hydrogens.$D$. $2,2,4,5-$Tetramethylheptane: This structure has two $2^{\circ}$ carbons ($C3$ and $C6$),resulting in $4$ secondary hydrogens.Therefore,the correct option is $C$.

The alkane from below having two secondary hydrogens is:

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