Question

2.8g of pure alkene containing only one double bond per molecule. reacts
completely with 8g of bromine in an inert solvent. The molecular formula of alkene
1s
(A) CH4 (B) CzH; (C) C3H4
(D) CH12​

Answer 1

Answer:

Answer is C4H8

2.8g of alkene corresponds to 8g of Br2

so, 160g of Br2 corresponds to 56g of alkene

so total no of carbon should be 4 as,

4×12 + 8×1 = 56g

so, the formula of the compound must be  C4H8