Class 9th Chemistry - Is matter around us pure?

State True or False:

We can separate the different components of a homogeneous mixture using filtration technique?

• True

• False

State True or False:

A homogeneous solution does not show Tyndall effect?

• True

• False

You are given a black ink and you want to find out the different dyes present in it.  Which separation technique will you use?

• Centrifugation technique

• Separating cylinder technique

• Chromatography technique

• Fractional distillation technique

Which separation technique will you use to separate a mixture of two immiscible liquids using difference in densities as a deciding factor?

• Filtration

• Chromatography

• Separating funnel

• Fractional distillation

State True or False

We can separate a mixture of ammonium chloride and camphor using sublimation technique as shown here

• True

• False

Which separation technique is being used here?

• Simple distillation

• Fractional distillation

• Separating funnel

• Crystallization

What is the function of fractionating column here?

• It increases the boiling point

• It decreases the boiling point

• It increases the surface area for condensation to happen

• It decreases the surface area for condensation to happen

Alum is generally used in which of the following separating technique?

• Chromatography

• Loading

• Centrifugation

• Fractional distillation

 A solution contains 400 g of common salt in 3200 g of water.  Calculate the concentration of salt in this solution in terms of mass percentage?

• 11.11%

• 1.11%

• 111.1%

• 1.1%

There are two solutions A and B.  Solution B contains 40 g of common salt in 210 g of water and solution A contains 80 g in 320 g of water.  Which one will have more concentration of salt?

• Solution A

• Solution B

• Both will have same concentration