Addition Reaction

Q. Explain addition reaction with one example.

Q. Propene reacts with hydrogen in the presence of catalyst and forms .

1. nickel
2. aluminium
3. propane
4. propyne

Q.

Chlorophyll the green pigment a complex of magnesium contains 2.68 % of magnesium by weight. Calculate the number of magnesium atoms in 5 gram of the chlorophyll.

Please explain in detail.

Q.

The reaction between propene and chlorine to give 1, 2 - dichloropropene is a substitution reaction.

1. False

2. True

Q.

How we can convert unsaturated hydrocarbon to saturated hydrocarbon?

Q. The compound octane, on thermal cracking, will give:

1. Pentene and butane
2. Hexane and butene
3. Pentane and propene
4. Propene and butane

Q.

Why does an alkene decolorize bromine water?

Q. Question 57
An organic compound A on heating with concentrated ${\text{H}}_2{\text{SO}}_4$ forms a compound B which on an addition of one mole of hydrogen in presence of $\text{Ni}$ forms a compound C. One mole of compound C on combustion forms two moles of ${\text{CO}}_2$ and 3 moles of ${\text{H}}_2\text{O}$. Identify the compounds A, B and C and write the chemical equations of the reactions involved.

Q. (a) What are the products obtained when methane reacts with chlorine in diffused sunlight?
(b) Write equations for the above reactions.
(c) Name and define the type of above reaction.

Q.

The formation of methyl chloride from the reaction of methane with chlorine is addition reaction.

1. True

2. False

Q.

Which of the following compounds would give addition reactions?

${\mathrm{CH}}_4,{\mathrm{C}}_2{\mathrm{H}}_4,{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_3{\mathrm{H}}_4,{\mathrm{C}}_3{\mathrm{H}}_8,{\mathrm{C}}_4{\mathrm{H}}_{10}$

Q.

The reaction in which atoms combine with unsaturated carbon compounds to form saturated carbon compounds is known as

1. Substitution reaction

2. Polymerisation reaction

3. Addition reaction

4. Combustion reaction

Q. If a molecule Y contains two carbon- carbon double bonds, then how many moles of ${\text{H}}_2$ are required for the complete hydrogenation of one mole of Y?

1. 1
2. 3
3. 4
4. 2

Q.

What is sago used as?

Q. $C{H}_3-C{H}_2-C{H}_3\left(g\right)\to P+C{H}_4\left(g\right)$

Identify P in the given reaction.

1. Ethene
2. Butane
3. Ethane
4. Butene

Q. The compound octane, on thermal cracking, will give:

1. Pentene and butane
2. Hexane and butene
3. Propene and butane
4. Pentane and propene

Q. Choose the correct option to complete the given reaction: ${\text{CH}}_2={\text{CH}}_2\text{(g)}+\text{HBr (g)}\stackrel{\text{Ni Catalyst}}{\to }?$

1. No reaction occurs
2. ${\text{CH}}_3\text{Br}+{\text{CH}}_4$
3. ${\text{CH}}_3+{\text{CH}}_2\text{Br}$
4. ${\text{CH}}_3{\text{CH}}_2\text{Br}$

Q. Identify the type of reaction given.
$C{H}_2=C{H}_2\left(g\right)+H_2\left(g\right)\to C{H}_{3}C{H}_3\left(g\right)$

1. Substitution reaction
2. Addition reaction
3. Polymerisation reaction
4. Combustion reaction

Q. Explain the given reaction with examples:

(a) Hydrogenation
(b) Oxidation
(c) Substitution
(d) Combustion

Q.

$CH\equiv CH+H_2\to C{H}_2=C{H}_2$

The given reaction is an example of substitution reaction.

1. True

2. False

Q.

Analyze the given diagram and identify A and B.

1. $A-C_2{H}_6,B-C_2{H}_2$
2. $A-C_2{H}_4,B-C{H}_{2}Cl$
3. $A-C_2{H}_6,B-C{H}_{3}Cl$
4. $A-C_2{H}_8,B-C{H}_{4}Cl$

Q. Identify the products formed from the following reaction.

$\text{Heptane}\stackrel{\text{Thermal cracking}}{\to }\text{A}+\text{B}$

1. Propane + Butane
2. Ethane + Pentene
3. Butane + Propene
4. Hexane + Methane

Q.
Analyze the given diagram and identify A and B.

1. $A-C_2{H}_4,B-C{H}_{2}Cl$
2. $A-C_2{H}_8,B-C{H}_{4}Cl$
3. $A-C_2{H}_6,B-C_2{H}_2$
4. $A-C_2{H}_6,B-C{H}_{3}Cl$

Q. $C{H}_3-C{H}_2-C{H}_3\left(g\right)\to P+C{H}_4\left(g\right)$

Identify P in the given reaction.

1. Ethene
2. Butane
3. Ethane
4. Butene

Q. Identify the type of reaction given.
$C{H}_2=C{H}_2\left(g\right)+H_2\left(g\right)\to C{H}_{3}C{H}_3\left(g\right)$

1. Substitution reaction
2. Addition reaction
3. Polymerisation reaction
4. Combustion reaction

Q.

Analyze the given diagram and identify A and B.

1. $A-C_2{H}_6,B-C_2{H}_2$
2. $A-C_2{H}_8,B-C{H}_{4}Cl$
3. $A-C_2{H}_6,B-C{H}_{3}Cl$
4. $A-C_2{H}_4,B-C{H}_{2}Cl$

Q. Why is ionic radii of lithium positive more than magnesium 2 positive ?

Q. $C{H}_3-C{H}_2-C{H}_3\left(g\right)\to P+C{H}_4\left(g\right)$

Identify P in the given reaction.

1. Butane
2. Ethene
3. Butene
4. Ethane

Q.

The reaction in which atoms combine with unsaturated carbon compounds to form saturated carbon compounds is known as

1. Substitution reaction

2. Addition reaction

3. Polymerisation reaction

4. Combustion reaction

Q. Which of the following compounds will undergo an addition reaction?

1. $C_3{H}_8$
2. $C_2{H}_2$
3. $C_3{H}_6$
4. $C_4{H}_{10}$