First Term Sample Exam Class IX PHY/CHEM

What is as Alloy like Bronze considered as:

• Homogeneous Mixture

• Heterogeneous MIxture

• Element

• Compound

Which of the following is not true about a Solution?

• It is a homogeneous mixture

• the particle size is <=1 nm

• Solute cannot be separated by filtration

• Shows Tyndall Effect

How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?

• Simple Distillation

• Sedimentation

• Sublimation

• Filtration

Centrtifugation is the technique to separate:

• Butter from curd

• Salt from sea water

• Camphor from salt

• None of the above

Which of the following is not a pure substance?

• Sugar

• Common Salt

• Coal

• Rubber

Ammonium chloride can be separated from a mixture containing sodium chloride and ammonium chloride using:

• Distillation

• Chromatography

• Sublimation

• Decantation

31 gm of Potassium Chloride is mixed with water to get a 50 gm Solution. It's concentration is:

• 62 %

• 64 %

• 15.5 %

• 31%

Sugar was added to water at 373 K. If the temperature is reduced to 173 K, what effect will it have on its solubility:

• Solubility decreases

• Solubility increases

• Solubility remains the same

• None of the above

Which of the following will show "Tyndall effect"?

• Salt solution

• Milk

• Copper sulphate solution

• Starch solution

Pb is the chemical symbol for which element?

• Tin

• Iron

• Lead

• Zinc