Pentane has the molecular formula C_{5}H_{12} | vedclass

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(D) The molecular formula of pentane is $C_{5}H_{12}$.To find the number of covalent bonds,we can use the structural formula of pentane.Pentane is an

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$16$ covalent bonds

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(D) The molecular formula of pentane is $C_{5}H_{12}$.To find the number of covalent bonds,we can use the structural formula of pentane.Pentane is an alkane with a straight chain of $5$ carbon atoms.Each carbon atom is bonded to other atoms via single covalent bonds.There are $4$ $C-C$ bonds between the $5$ carbon atoms.Each carbon atom is also bonded to hydrogen atoms to satisfy its valency of $4$.Specifically,the $3$ terminal carbon atoms are bonded to $3$ hydrogen atoms each ($3 	imes 3 = 9$ bonds),and the $2$ internal carbon atoms are bonded to $2$ hydrogen atoms each ($2 	imes 2 = 4$ bonds). However,in a chain of $5$ carbons $(C-C-C-C-C)$,there are $4$ $C-C$ bonds and $12$ $C-H$ bonds.Total covalent bonds = (Number of $C-C$ bonds) + (Number of $C-H$ bonds) = $4 + 12 = 16$ covalent bonds.Alternatively,for any alkane with $n$ carbon atoms,the total number of covalent bonds is given by the formula $3n + 1$.For pentane,$n = 5$,so total bonds = $3(5) + 1 = 15 + 1 = 16$.

Pentane has the molecular formula $C_{5}H_{12}$. It has:

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