WBBSEClass XPhysical ScienceOrganic Chemistry03 Mark2024 Moderate

QQuestion

Write down the reaction of the industrial production of Ethylene. Mention two uses of Ethylene.

OR

How is carbon tetrachloride produced by substituting the hydrogen atoms of methane by chlorine atoms in steps?

Exam-ready answer 03 Mark

Answer

CH3CH2OH (Vapour) \overset {Al_2O_3,\ 350°C} {\longrightarrow} H2C = CH2 (Ethylene) + H2O

The two uses of Ethylene are:

  1. To ripen fruit and for fruit preservation.
  2. To make plastic polyethylene.

OR

Carbon tetrachloride (CCl₄) is produced by chlorinating methane (CH4) in several steps:

CH4 + Cl2 → CH3Cl + HCl

CH3Cl + Cl2 → CH2Cl2 + HCl

CH2Cl2 + Cl2 → CHCl3 + HCl

CHCl3 + Cl2 → CCl4 + HCl

Was this answer helpful?

Related Questions

More WBBSE Moderate level questions

1/12

Identify the chemical reaction which yields chloroform (a) CH4 + Cl2 (b) CH3Cl + Cl2 (c) CH2Cl2 + Cl2 (d) CHCl3 + Cl2

Moderate 01 Mark

A hydrocarbon in the substitution reaction with chlorine in diffused sunlight forms methyl chloride in the first step. What is the hydrocarbon ? Write balanced chemical equation for the first step of the reaction. Mention one use of the hydrocarbon. [1 + 1 +1] OR What is the industrial source of LPG? Write one use of each of acetic acid and poly (tetrafluoroethylene). [1 + 2]

Moderate 03 Mark

Write the structural formulae of 1,2-dibromoethane and 1,1,2,2-tetrabromoethane. Write the name of the organic compound which is produced when ethyl alcohol is heated with concentrated sulphuric acid. [2+1]

Moderate 03 Mark

What is a denatured spirit? OR Write one use each of Ethyl alcohol and Acetic acid.

Easy 02 Mark

Write down the structural formula of the principal constituent of LPG. OR Write down the structural formula of 1, 1, 2, 2 tetrabromoethane.

Easy 01 Mark

Write down the names of two organic compounds with different functional groups designated by the formula C2H6O.

Easy 01 Mark

Which compound is used to prepare melamine ?

Easy 01 Mark

Draw the structural formula of a saturated hydrocarbon containing two carbon atoms.

Easy 01 Mark

Write down the IUPAC name of the following organic compound:

Moderate 01 Mark

Give an example of positional isomerism

Moderate 01 Mark

CH₃COOH is an organic compound but NaHCO₃ is not an organic compound; write one reason for each case.

Moderate 02 Mark

Write the balanced chemical equation for the reaction between acetic acid and sodium bicarbonate. Between jute and polythene, which one is eco-friendly for packaging purposes and why? [1+2]

Easy 03 Mark