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c) 65 mL of alcohol
d) 100mL of alcohol

Q6 The concentration of a solution is expressed in terms of quantity of 1
solute present per given quantity of solvent(True/False)

Concept: Colloids , their properties and Different types of colloids

Q1. Assertion: A solution of egg albumin shows Tyndall effect. 1
Reason: The particles size in albumin are in the range of 1 nm to 100
nm
Q2 Assertion: Gem stones are called solid sols 1
Reason: In gem stones the dispersed phase and dispersion medium
both are solids.
Q3 Assertion: Paints are emulsions 1
Reason: In paints the dispersed phase is solid and dispersion
medium are liquids.
Q4 Which of the following is a sol?

a) Ink
b) Curd
c) Jelly
d) Pumice stone

Q5 Mist, fog and clouds are called 1

a) Gels
b) aerosols
c) sols
d) emulsions

Q6 Which of the following is stable? 1

a) muddy water
b) starch and water
c) sand and water
d) saw dust and water

Concept: Tyndall effect and its examples, Suspensions and their properties

Q1. Assertion: The sky appears due to Tyndall effect. 1
Reason: The particle in the air scatter light.
Q2 Assertion: The path of light is visible in soap solution. 1
Reason: Soap solution is a colloid.
Q3 Assertion: Muddy water always show Tyndall effect. 1
Reason: Muddy water is a colloid.
Q4 Suspensions are 1