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Chemistry - 9 Chapter - 7
Solution and Suspension
Test - 8
1.
What is percentage by volume?
a) Volume of solute present in 100cm
4
of a solution
b) Volume of solute present in 100cm
3
of a solution
2.
Define molar solution?
a) A solution in which one mole of a solute has been dissolved in one dm
3
of solution. It is represented as N.
b) A solution in which one mole of a solute has been dissolved in one dm
3
of solution. It is represented as M.
3.
What is molarity?
a) Molarity of a solution is the number of moles of solute present in 1dm
3
of solution.
b) Molarity of a solution is the number of moles of solute present in 2dm
3
of solution.
4.
Define standard solution?
a) A solution whose concentration is known.
b) A solution whose concentration is not known.
5.
Define True Solution?
a) If the solvent particles are neither seen by necked eye and nor can be filtered, such a solution is called a True solution.
b) If the solute particles are neither seen by necked eye and nor can be filtered, such a solution is called a True solution.
6.
What is Colloidal solution?
a) Colloidal solution is a solution in which solute particles are bigger than those present in a True solution and which cannot be filtered.
b) Colloidal solution is a solution in which solute particles are smaller than those present in a True solution and which cannot be filtered.
7.
what is a suspension?
a) A mixture in which solute particles are dissolved in solvent.
b) A mixture in which solute particles do not dissolve in solvent.
8.
In a True Solution solute particles are not visible through naked eye.
a) False
b) True
9.
If a True Solution is not shaked for a certain time, solute particles gets settled on bottom of solution.
a) False
b) True
10.
A mixture of black board chalk in water is an example of a ________.
a) Standard solution
b) Suspension
c) True solution
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