MCQs from Chemistry for class 9

1.Name the element which becomes liquid at a temperatures slightly above the room temperature.

(a) Caesium
(b) Silicon
(c) Iodine
(d) Sodium

... Answer is :
(a) Caesium

2)Which of the following is not a pure substance

A) Tin
B) Coal
C) Ice
D)Lime Stone

... Answer :
(B) Coal

3.Which of the following is not a mixture?

A)Kerosene
B)Air
C)Alcohol
D)Petrol

... Answer :
(A)Kerosene

4) Which of the following is not an element.

A)Graphite
B)Geranium
C)Silicon
D)Silica

... Answer:
(C)Silicon

5)Which of the following are chemical changes? I. Decaying of wood II. Burning of wood III. Sawing of wood IV. Hammering of nail into a piece wood

A) I and II
B) II and III
C) III and IV
D) I and IV

... Answer :
(C)III and IV

6) There are how many element

A) 118
B)94
C)98
D)110

... Answer:
(A) 118

7.The property which allows the metal to be drawn into thin wires is called

A)malleability
B)ductility
C)element
D)compound

... Answer :
(B) ductility

8. Substance which mixed completely is called

A) Mixture
B)Elements
C)Homogenous mixture
D)Heterogeneous

... Answer :
(C) Homogenous mixture

9.Silicon is a

A) metal
B) non – metal
C)metalloid
D)All of these

... Answer :
(C) Metalloid

10.What is the chemical formula of Potassium hydrogencarbonate

A) NaHCO₃
B) NahCO
C) NaOH
D)Na2SO4

... Answer :
(c) Motion of a racing car on a circular track

11.An example of solution is

(a) Milk
(b) Vinegar
(c) Saving Cream
(d) All of these

... Answer is (b):
(b) Vinegar

12.Ruby (Colour gemstone) is a

(a) Sol
(b) Aerosol
(c) Gel
(d) Solid Sol

... Answer is (d):
(d) Solid Sol

13. How to find concentration of solution

(a) Mass of solute /Mass of solution × 100
(b) Mass of solution /Mass of solute ×100
(c) Mass of solute + Mass of solution
(d) Mass of solution /Mass of solute

... Answer is (a):
(a) Mass of solute /Mass of solution × 100

14.Breaking of glass tumbler is ……..................... change.

(a)Physical
(b)Chemical
(c) Both the above
(d) Neither Physical nor Chemical

... Answer is (a):
(a) Physical

15.Which of the following represents the solubility of sugar in water at 20 °C

(a) 21g
(b) 204g
(c) 37g
(d) 164g

... Answer is (a):
(a) 21g

16.One of the following liquids will leave behind a residues on heating. This on is :

(a) Brine
(b) Bromine
(c) Mercury
(d) Alcohol

... Answer is (a):
(a) Brine

17.A mixture of milk and groundnut oil can be separated by using water as the solvent ?

(a) Sublimation
(b) Evaporation
(c) Separating Funnel
(d) Filtration

... Answer is (c):
(c) Separating Funnel

18.Which on of the following cannot be separate by the process of fractional distillation?

(a) Oxygen
(b) Argon
(c) Hydrogen
(d) Nitrogen

... Answer is (c):
(c) Hydrogen

19.Which one of the following do not go sublimation?

(a) Camphor
(b) Dry Ice
(c) Silica
(d) Hydrogen

... Answer is (d):
(d) Hydrogen

20.The boiling point of liquid argon is

(a) -196°
(b) -183°
(c)-186°
(d) -193°

... Answer is (c):
(c)-186°