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Following compounds A and B have similar...

Following compounds A and B have similar structure with delocalization of `pi`-electrons system. `(A)(PNCl_(2))_("x/2")` (B)`(CH)_(x)`
If value of x is 6, then calculate value of "P+Q", where 'P' is total no. of `sigma`-bonds in compounds A and B and 'Q' is total no. of `pi` bonds in compounds A and B.

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The correct Answer is:
`4`
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