Question

how many pi electrons are there in C6H10?

Answer 1

$\huge{hey\:buddy}$❗❗❗

. step 1= write the structure of the given compound...(in attachment).

Then find out no of double(pi) bonds...

according to the structure, we find out 1 pi bond
hence 1 pi bond contains 2 $e^{-}$

hence the no of pi $e^{-}$ are 2.....

$\bold{@\:STYOO}$

Answer 2

C6H10 is an alkyne  

Alkyne contain one triple bonded atom  

In triple bond 2 are pi bond and one sigma

So, here 2 bond is +nt