CBES Board Class 9/Solutions Multiple Choice Questions CLASS 9 Sample Test,Sample questions

Question:
A mixture that has a uniform composition throughout is called

 

 

1. saturated solution

2. super saturated solution

3. solution

4. solvent


Question:
An unsaturated solution

1. cannot dissolve more solute

2. cannot add more solvent

3. can add more solute

4. none of above


Question:
At a particular temperature the solution which cannot dissolve more solute is called

1. saturated solution

2. saturated solution

3. unsaturated solution

4. aqueous solution


Question:
Bypassing hydrogen gas through vegetable oil it is converted in to

 

 

1. butter

2. milk

3. ghee

4.condensed milk


Question:
Colloids can

 

 

1. scatter light

2. not scatter light

3. absorb heat

4. evolve heat


Question:
Commercially concentrated HCl is

1. 0.4

2. 0.5

3. 0.37

4. 0.8


Question:
Fog is a solution to



 

1. air in water vapors

2. air in air

3. vapors in vapors

4.water vapors in air


Question:
In amalgams the solvent is

1. gas

2. liquid

3. solid

4. none of above


Question:
In solutions the particles are

 

 

1. invisible

2. visible by naked eye

3. visible by ordinary microscope

4. visible by electron microscope


Question:
In the air the nitrogen gas acts as


 

 

1. solute

2.solvent

3. gaseous solute

4. aqueous solute


Question:
In the presence of crystals of solute a supersaturated solution is

 

 

1. not stable

2. stable

3. cannot be made

4. none of above


Question:
Mass of solute dissolved in 100g of a solution refers to

1. percentage of solution

2. molarity of solution

3. molality of solution

4. none of above


Question:
olid solutions of metals are called

 

 

1. alloys

2. amalgams

3. saturated solutions

4. supersaturated solution


Question:
Solubility is the amount of solute dissolved in

 

 

1. 50 g of solvent

2. 100 g of solvent

3. 250 g of solvent

4. 200 g of solvent


Question:
Solutions that contain solid solutes in liquid solvents are called

 

 

1. liquids in solids

2. solids in liquids

3. solids in solids

4. solids in gas


Question:
The concentration of a dilute solution is


 

 

1. high

2. very high

3. same

4.low


Question:
The concentration of the solution is the quantity of


 

 

1. solvent in solute

2. solute in given solvent

3. gas dissolved in liquid

4. none of above


Question:
The mass of NaOH present per dm3 of 0.25M NaOH solution is

 

 

1. 10 g

2. 8 g

3. 5 g

4. 2 g


Question:
The methanol and water are

 

 

1. miscible

2. non miscible

3. forms saturated solution

4. forms supersaturated solution


Question:
The molarity of solution which contains 40 g urea dissolved in 500cm3 is

 

 

1. 1.2 M

2. 1.389 M

3. 1.334 M

4. 1.5 M


Question:
The number of moles of solute dissolved per dm3 of the solution is




1.molality

2.percentage

3.concentration

4.molarity


Question:
The only liquid metal at room temperature is

1. sodium

2. iron

3. mercury

4. aluminum


Question:
The particle size in suspension is

1. less than 103 nm

2. 102 nm

3. greater than 103

4. 10 nm


Question:
The solubility of Na2SO4

1. increases with increase in temperature

2. decreases with increase in temperature

3. no effect on solubility with change in temperature

4. none of above


Question:
The solution of copper and zinc forms


 

 

1. sodium

2. mercury

3.brass

4. silver


Question:
The solution of mercury with other metals is called

 

 

1. amalgam

2. saturated solution

3. supersaturated solution

4. unsaturated solution


Question:
The substance present in a lesser amount in solution is

 

 

1. solute

2. solvent

3.aqueous solvent

4. none of above


Question:
To prepare ammonia gas the gaseous mixture of



 

 

1. hydrogen and chlorine is used

2.hydrogen and nitrogen is used

3. hydrogen and helium is used

4. hydrogen and iodine is used


Question:
When NaCl is dissolved in water the negative end of water molecules is attracted towards

 

 

1. Cl

2. H

3. He

4. Na


Question:
When the tiny particles of a substance are dispersed through a medium then the mixture is called


 

 

1. alloys

2.amalgams

3. suspension

4. colloid


More MCQS

  1. CLASS 9 FUNDAMENTALS OF CHEMISTRY MCQS
  2. FUNDAMENTALS OF CHEMISTRY MCQS class 9 SET 2
  3. Electrochemistry Multiple Choice Questions Class 9
  4. PHYSICAL STATES OF MATTER MCQS CLASS 9
  5. Solutions Multiple Choice Questions CLASS 9
  6. STRUCTURE OF ATOMS MCQS CLASS 9
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