The number of sigma and pi-bonds in 1-butene-yne are:

(a) 5 sigma and 5 pi

(b) 7 sigma and 3 pi

(c) 8 sigma and 2dpi

(d) 5 sigma and 4 pi

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane