The double bond equivalent (DBE) of cubane is | vedclass

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(B) The molecular formula of cubane is $C_8H_8$.For a hydrocarbon with formula $C_xH_y$,the double bond equivalent $(DBE)$ is calculated using the for

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$5$

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(B) The molecular formula of cubane is $C_8H_8$.For a hydrocarbon with formula $C_xH_y$,the double bond equivalent $(DBE)$ is calculated using the formula: $DBE = x - \frac{y}{2} + 1$.Substituting the values $x = 8$ and $y = 8$:$DBE = 8 - \frac{8}{2} + 1 = 8 - 4 + 1 = 5$.Alternatively,the $DBE$ is equal to the number of rings plus the number of pi bonds. Cubane has $5$ rings and $0$ pi bonds,so $DBE = 5 + 0 = 5$.

The double bond equivalent $(DBE)$ of cubane is:

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