Birch reduction : Birch reduction involves controlled reduction of alkynes & atomic compounds in the preseance of alkali metals & alcohol. It provides a method to sterospecifically prepare alkenes of E- configuration `R - C -= C -R overset(M,EtOH)to`
The characteristic type of reaction of alkynes is electrophilic addition reaction like alkenes. The alkynes show various reactions such as halagenation, hydration, hydrogenation etc... 0.40 5g sample of hydrocarbon occupies 229.54ml at `100^(@)C` & 1 atm pressure. It decolouses `KMnO_4` & `Br_2` water. When it reacts with dil. `H_2SO_4` under appropriate conditions methyl ethyl, ketone is formed
The hydrocarbon exists in (structural isomer)

Options

A. 8 isomeric forms
B. 9 isomeric forms
C. 10 isomeric forms
D. 7 isomeric forms

Answer

B

Explanation

`C -= C - C -C , " " C-C -= C - C `
`C = C-C = C ," " C = C = C - C`