Chapter 27, Problem 57IAE

Interpretation Introduction

(a)

Interpretation:

The formula of the product formed by the reaction of propene with ${\text{H}}_2$ in the presence of $\text{Pt}$ catalyst should be written.

Concept introduction:

Reaction of unsaturated compounds (alkene and alkynes) with hydrogen gas in the presence of a metal catalyst is called catalytic hydrogenation reaction. In this reaction, hydrogen molecule adds across the carbon-carbon double bond to give a saturated compound (alkane).

Interpretation Introduction

(b)

Interpretation:

The formula of the product formed by the reaction of propene with ${\text{Cl}}_2$ should be written.

Concept introduction:

Reaction of alkenes with chlorine gas $\left({\text{Cl}}_2\right)$ is called hydrogenation or addition reaction. In this reaction, chlorine molecule adds across the carbon-carbon double bond to give a saturated compound.

Interpretation Introduction

(c)

Interpretation:

The formula of the product formed by the reaction of propene with $\text{HCl}$ should be written.

Concept introduction:

Reaction of alkenes with hydrogen halide $\left(\text{HCl}\right)$ is an example of an addition reaction. In this reaction, chlorine and hydrogen atom adds across the carbon-carbon double bond to give a saturated compound.

Addition of hydrogen halide to unsymmetrical alkene occurs in accordance with Markovnikov’s rule. It states that addition of hydrogen halide to unsymmetrical alkene occurs in such a manner that hydrogen attaches to the carbon having more number of carbon and halide part goes to the carbon with less number of hydrogen atoms.

Interpretation Introduction

(d)

Interpretation:

The formula of the product formed by the reaction of propene with ${\text{H}}_2\text{O}$ in acid should be written.

Concept introduction:

Reaction of alkenes with water in the presence of acid is an example of hydration reaction to give corresponding alcohol.

Addition of water to unsymmetrical alkene occurs in accordance with Markovnikov’s rule. It states that the addition of water to unsymmetrical alkene occurs in such a manner that hydrogen attaches to the carbon having more number of carbon and hydroxide part goes to the carbon with less number of hydrogen atoms.