Application Questions - 23 Alkynes

1. Which of the following is most acidic?

a) butane
b) 1-butene
c) 1-butyne
d) 2-butyne

2. Acetylene reacts with water in the presence of Hg^2+ and acidic medium to give
a) ethanal
b) ethanol
c) ethane
d) propanal

3. The compound which forms only acetaldehyde upon ozonolysis is:

a) Ethyne
b) Propene
c) 1-Butene
d) 2-Butene

4. The number of acidic hydrogen atoms in 1-butyne is

a) 1
b) 2
c) 3
d) 4

5. Which of the following can exhibit geometrical isomerism?

a) 2-butyne
b) 2-butene
c) 1-butene
d) 2-butanol