Substitution

Q. Chlorination of methane is an example of:

1. addition reaction
2. dehydration reaction
3. reduction reaction
4. substitution reaction

Q.

Type of reactions are given by alkanes is

___

Q.

The characteristic reaction of alkanes is

1. Addition

2. Isomerization

3. Substitution

4. Polymerization

Q. Which of the following hydrocarbons undergo addition reactions:$C_2{H}_6,C_3{H}_8,C_3{H}_6,C_2{H}_2\text{and}C{H}_4.$

Q. Copy and complete the following sentence:
A saturated hydrocarbon will undergo ............... reactions, whereas the typical reaction of an unsaturated hydrocarbon is ..............

Q.

What is a substitution reaction? Give the reaction of chlorine with ethane and name the product formed.

Q.

When a mixtuze of gases X and Y is compressed to 300 atm pressure and then passed over a catalyst consisting of a mixture of zine oxide and chromium oxide (heated to a temperature of ${300}^{o}C$), then an organic compound Z having the molecular formula $C{H}_{4}O$ is formed. X is a highly poisonous gas which is formed in appreciable amounts when a fuel burs in a limited supply of air ; Y is a gas which can be made by the action of a dilute acid on an acitve metal ; and Z is a liquid organic compound which can react with sodium metal to produce hydrogen gas.

(a) What are X, Y and Z ?

(b) Write a balanced chemical equation of the reaction which takes place when X and Y combine to form Z. Indicate the conditions under which the reation occurs.

Q.

(a) What is meant by a substitution reaction? Give an example (with equation) of the substitution reaction of an alkane.
(b) How is soap made? Write a word equation involved in soap making.

Q.

Give the chemical equation for hydrogenation of ethene.

Q.

Substitution reaction are characteristic reactions of __________.

Q.

Give reaction:

Addition of ethene with hydrogen

Q. Methane is reacted with chlorine in the presence of sunlight to produce chloromethane. What type of reaction is this?

1. Addition reaction
2. Substitution reaction
3. Elimination reaction
4. Hydrogenation reaction

Q.

The reaction in which one type of atom or group of atoms takes the place of another atom is called:

1. Oxidation reaction

2. Substitution reaction

3. Addition reaction

4. Combustion reaction

Q. Question 6
${\text{CH}}_3-{\text{CH}}_2-\text{OH}\stackrel{{\text{Alkaline KMnO}}_4+\text{Heat}}{\to }{\text{CH}}_3-\text{COOH}$
In the above-given reaction, alkaline ${\text{KMnO}}_4$ acts as
(a) reducing agent
(b) oxidising agent
(c) catalyst
(d) dehydrating agent

Q.

Which of the following hydrocarbon does not undergo addition reaction? ${\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_3{\mathrm{H}}_8,{\mathrm{C}}_2{\mathrm{H}}_2,{\mathrm{CH}}_4$

Q.

The reaction in which one functional group is replaced with another functional group is called:

1. Endothermic reaction

2. Addition reaction

3. Substitution reaction

4. Exothermic reaction

Q.

(a) Describe, giving the equation, a chemical reaction which is characteristic of saturated hydrocarbons (or alkanes).
(b) What is an oxidising agent? Name two oxidising agents which can oxidise ethanol to ethanoic acid.
(c) Describe one reaction of a carboxylic acid.

Q.

Identify the type of reactions alkenes undergo.

Q.

Which of the following hydrocarbons will give substitutuion reactions and why ?
$C{H}_4,C_3{H}_6,C_3{H}_8,C_4{H}_6,C_5{H}_{12},C_5{H}_{10}$

Q. Chlorination of methane is an example of:

1. addition reaction
2. reduction reaction
3. dehydration reaction
4. substitution reaction

Q. The chlorination of methane is an example of:

1. addition
2. elimination
3. None of the above
4. substitution

Q.

(a) What happens when methane reacts with chlorine? Give the equation of the reaction which takes place.
(b) What is hydrogenation? What is its industrial application?
(c) Give any two difference between soaps and detergents.

Q.

Type of reactions are given by alkanes is

___

Q.

CH₂=CH₂ + H₂ → CH₃-CH₃ is an example of:

1. Elimination reaction

2. Addition reaction

3. Substitution reaction

4. Displacement reaction

Q.

Addition reaction and substitution reaction is a type of organic reaction, which type of reaction is shown by Ethane.

Q. Ethanol on complete oxidation gives __________.

1. acetaldehyde
2. acetone
3. carbon dioxide
4. acetic acid

Q.

In the given equation:

Isobutane + ${\mathrm{Br}}_2$(hv/ temp = 125^o𝐶) →?

1. 

2. 

3. 

4. 

Q.

$\mathrm{KCN}$ on reacting with haloalkanes form:

Q. Methane exist as a gas at room temperature. This is because-

Q.

how the substitution reaction happens