Addition Reaction Halogenation

Q.

What happens when ethane reacts with bromine water?

Q.

Conversion of ethene to ethane is an example of _____

Q.

How would you convert :
(a) ethene into 1, 2-dibromoethane?
(b) ethene into ethyl bromide?

Q.

Write the name and formula of the product formed in each case below:
(a) $C_2{H}_4+C{l}_2\to .........$
(b) $C_2{H}_{5}Br+KOH(alc.)\stackrel{\Delta }{⟶}.........$
(c) $H_{2}C=C{H}_2\stackrel{alk.KMn{O}_4}{\to }.........$
(d) $H_{2}C=C{H}_2+HBr\to .......$

Q.

What happens when ethene gas is treated with HCl?

1. Ethylene is formed

2. Ethane is formed

3. Chloroethane is formed

4. Methane is formed

Q. Write the name and formula of the product formed in each case below:
a) $C_2{H}_4+C{L}_2\to \dots \dots$

b) $C_2{H}_{5}Br+KOH(alc.)\stackrel{\Delta }{\to }\dots \dots$

c) $H_{2}C=C{H}_2+2\left[O\right]\stackrel{alk.KMn{O}_4}{\to }\dots \dots$

d) $H_{2}C=C{H}_2+HBr\to \dots \dots$

(e) $H_{2}C=C{H}_2+O_3\to \dots \dots$

[5 MARKS]

Q. of alkenes is an explosive reaction.
It takes places as follows (X represents the halogen atom): ${\mathrm{CH}}_2={\mathrm{CH}}_2+$$\stackrel{{\mathrm{CCl}}_4}{\to }$${\mathrm{CH}}_{2}X-{\mathrm{CH}}_{2}X$

1. $F_2$
2. ${\mathrm{Cl}}_2$
3. ${\mathrm{Br}}_2$
4. Fluorination
5. Bromination
6. Chlorination

Q.

In the presence of $CC{l}_4$ what is the end product in this reaction ?$C{H}_2=C{H}_2+C{l}_2\to$

1. 1, 2 dichloro ethane

2. 1-chloro ethane

3. 1, 1 dichloro ethane

4. penta chloro ethane

Q.

In the presence of $CC{l}_4$ what is the end product in this reaction ?$C{H}_2=C{H}_2+C{l}_2\to$

1. 1, 2 dichloro ethane

2. penta chloro ethane

3. 1-chloro ethane

4. 1, 1 dichloro ethane

Q.

What happens when ethene gas is treated with HCl?

1. Ethane is formed

2. Methane is formed

3. Ethylene is formed

4. Chloroethane is formed

Q.

What happens when ethene gas is treated with HCl?

1. Ethane is formed

2. Chloroethane is formed

3. Methane is formed

4. Ethylene is formed

Q. of alkenes is an explosive reaction.
It takes places as follows (X represents the halogen atom): ${\mathrm{CH}}_2={\mathrm{CH}}_2+$$\stackrel{{\mathrm{CCl}}_4}{\to }$${\mathrm{CH}}_{2}X-{\mathrm{CH}}_{2}X$

1. $F_2$
2. ${\mathrm{Cl}}_2$
3. ${\mathrm{Br}}_2$
4. Fluorination
5. Bromination
6. Chlorination

Q.

What happens when ethene gas is treated with HCl?

1. Methane is formed

2. Ethylene is formed

3. Chloroethane is formed

4. Ethane is formed