ICSE ICSE Class 6 - CISCE Question Bank Solutions for Chemistry

Name the following

An agricultural pollutant in water

Differentiate between chemical pollution and thermal pollution.

Give a reason why :
Polluted water causes disease.

Name the process by which the components of the following mixture can be separated.

Wheat and sugar

Name the process by which the components of the following mixture can be separated.

Sugar and water

Name the process by which the components of the following mixture can be separated.

Sand and camphor

Give reasons

Alum is used in purification of river water.

Tick (√) the correct alternative from the choice given for the following statement:

The process of adding a chemical substance to help the suspended solid particles to deposit as sediment fastly is called

Give one word name for the following

The clean liquid which is poured out after sedimentation

State the principle involved in separation of solid-liquid mixtures by sedimentation and decantation

Differentiate between the terms sedimentation and decantation with a suitable experimental technique.

Define Sublimation

Define Evaporation

Name the process by which the components of the following mixture can be separated.

Salt and water

Tick (√) the correct alternative from the choice given for the following statement:

Salt is separated from seawater by

Give one word name for the following

The solid particles which separate out from the solution on slow evaporation

State the principle involved in separation of solid-liquid mixtures by evaporation

Explain how a solid component is separated in a soluble solid-liquid mixture.

Draw a neat labelled diagram for the separation of the following mixture.

Naphthalene from sodium chloride

Draw a neat labelled diagram for the separation of the following mixture.

Common salt from a solution of common salt and water