Halogenation of Alkynes

Q.

What happens when ethyne reacts with iodine in the presence of alcohol?

1. 1, 2-Diiodoethane

2. 1, 2-Diiodoethene

3. 1, 1-Diiodoethene

4. 1, 1- Diiodoethane

Q. Convert Propyne to Propene.

Q.

Name the products formed and write an equation when ethyne is added to the following in an inert solvent :
(a) chlorine, (c) iodine,
(b) bromine, (d) hydrogen.
(e) excess of hydrochloric acid.

Q. Arrange the following halogens in decreasing order of reactivity with alkynes.

1. $F_2$
2. $C{l}_2$
3. $B{r}_2$
4. $I_2$

Q. Give the reactions of ethyne with
(a) Hydrogen
(b) Water
(c) Bromine

Q.

1. 

2. 

3. 

4. 

Q.

What happens when ethyne reacts with iodine in the presence of alcohol?

1. 1, 1 di-iodoethene

2. 1, 1 di-iodoethane

3. 1, 2 di-iodoethane

4. 1, 2 di-iodoethene

Q. Alkenes are more reactive towards electrophilic addition reaction than alkynes.

1. True
2. False

Q. Alkenes are more reactive towards electrophilic addition reaction than alkynes.

1. True
2. False

Q. Arrange the following halogens in decreasing order of reactivity with alkynes.

1. $F_2$
2. $C{l}_2$
3. $B{r}_2$
4. $I_2$