Complete the following reaction: CH 4 ( g ) + Cl 2 ( g ) → sunlight

CH 4 Methane + Cl 2 Chlorine → - HCl Sunlight CH 3 Cl Chloromethane + Cl 2 Chlorine → - HCl Sunlight CH 2 Cl 2 Dichloromethane + Cl 2 Chlorine → - HCl Sunlight CHCl 3 Trichloromethane + Cl 2 Chlorine → - HCl Sunlight CCl 4 Tetrachloromethane A substitution reaction is a type of chemical reaction in which an atom or a group of atoms of a molecule is replaced by another atom or group of atoms. Here, The hydrogen atom is substituted by a chlorine atom and then results in corresponding chloroalkane.

Complete the following reaction: Vegetable oil ( Unsaturated oil ) + H 2 ( g ) → Ni or Pt

Vegetable oil ( Unsaturated oil ) + H 2 ( g ) → Ni or Pt Solid fat Unsaturated oil is converted into saturated fat in this process. It is an example of addition reaction. An addition reaction is one in which two reactants add up together to produce a single product. The reaction which involves direct addition of an attacking agent, across the double or triple bonds are called addition reactions.

Complete the following reaction: CH 3 COOH Ethanoic acid + HOCH 2 - CH 3 Ethanol → Conc . H 2 SO 4

CH 3 COOH Ethanoic acid + HOCH 2 - CH 3 Ethanol → Conc . H 2 SO 4 CH 3 COOC 2 H 5 + H 2 O When ethanol reacts with ethanoic acid in the presence of concentrated sulphuric acid, it forms ethyl ethanoate. The compound formed is also known as ester and the process of formation of the ester is known as esterification.

Complete the following reaction: CH 3 CH 2 COOH Propanoic acid + Na 2 CO 3 Sodium carbonate →

CH 3 CH 2 COOH Propanoic acid + Na 2 CO 3 Sodium carbonate → CH 3 CH 2 COONa + CO 2 + H 2 O When propanoic acid reacts with aqueous sodium carbonate it releases carbon dioxide along with the formation of sodium salt of carboxylic acid and water. It is an acid-base reaction.

E M B I B E

Science Chemistry>Chapter 4 - Carbon and Its Compounds>ASSESSTMENT>Q 16

EASY

10th ICSE

IMPORTANT

Earn 100

Write balanced chemical equation for the following:

Ethanol is mixed with ethanoic acid in the presence of an acid.

Important Questions on Carbon and Its Compounds

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 4 - Carbon and Its Compounds>ASSESSTMENT>Q 17

A salt X is formed and a gas is evolved when ethanoic acid reacts with sodium hydrogen carbonate. Name the salt X and the gas evolved. Describe an activity and draw the diagram of the apparatus to prove that the evolved gas is the one which you have named. Also, write chemical equation of the reaction involved.

MEDIUM

10th ICSE

IMPORTANT

Science Chemistry>Chapter 4 - Carbon and Its Compounds>ASSESSTMENT>Q 18

Esters are sweet smelling substances and are used in making perfumes. Suggest some activity and the reaction involved for the preparation of an ester with well labelled diagram.

EASY

10th ICSE

IMPORTANT

Science Chemistry>Chapter 4 - Carbon and Its Compounds>ASSESSTMENT>Q 20

Complete the following reaction:

${CH}_{4} (g) + {Cl}_{2} (g) \overset{sunlight}{\to}$