Pure And Impure Matter Test

Result

Pure And Impure Matter Test - 1

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Common salt is an example of

A
compound

B
mixture

C
element

D
None of the above

Solution

Sodium chloride (NaCl), also known as common salt or halite, is an ionic compound with the chemical formula NaCl, representing a 1 : 1 ratio of sodium and chloride ions.
Question 2
1 / -0

Which of the following is an element?

A
Ruby

B
Sapphire

C
Emerald

D
Diamond

Solution

Diamond is an allotropic form of the element carbon.
Question 3
1 / -0

Example of an element is

A
air

B
chlorine

C
water

D
sulphur dioxide

Solution

Chlorine is an element. Air is a mixture, whereas water and sulphur dioxide are examples of compounds.
Question 4
1 / -0

Glass has the elements:

A
Hg, Si, O₂ and N₂

B
Na, Si and O₂

C
H₂, O₂ and C

D
Si, C and O₂

Solution

The most common constituent of glass is silica (SiO₂) along with compounds like Na₂CO₃, CaCO₃, etc.

A common form of glass is Na₂SiO₃.
Question 5
1 / -0

Which of the following is a polyatomic element?

A
Sulphur

B
Aluminium

C
argon

D
neon

Solution

Sulphur is a polyatomic element.
Question 6
1 / -0

Which of the following is a compound?

A
Milk

B
Air

C
Helium

D
Water

Solution

Water is a compound.
Question 7
1 / -0

The symbol for potassium is

A
Pt

B
K

C
P

D
I

Solution

The symbol for potassium is K.
Question 8
1 / -0

Which of the following is highly compressible?

A
Copper

B
Bromine

C
Oxygen

D
Iron

Solution

As oxygen is a gas and gases are highly compressible in nature.
Question 9
1 / -0

Why does balloon burst with a sound when it is pricked with a needle?

A
Because of force exerted by the needle.

B
Because of force exerted by gas present in the balloon.

C
Because of decreasing kinetic energy of gas.

D
Because of high temperature inside the balloon.

Solution

On pricking the balloon with a needle, the gas in the balloon expands with a sound.

The expansion work done by the gas is converted into sound energy.
Question 10
1 / -0

Which of the following has the highest kinetic energy?

A
Solid

B
Liquid

C
Gas

D
Plasma

Solution

Plasma is a fourth state of matter, which has the highest kinetic energy.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Pure And Impure Matter Test - 1

Result

Pure And Impure Matter Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

compound

mixture

element

None of the above

Solution

Question 2

Ruby

Sapphire

Emerald

Diamond

Solution

Question 3

air

chlorine

water

sulphur dioxide

Solution

Question 4

Hg, Si, O2 and N2

Na, Si and O2

H2, O2 and C

Si, C and O2

Solution

Question 5

Sulphur

Aluminium

argon

neon

Solution

Question 6

Milk

Air

Helium

Water

Solution

Question 7

Pt

K

P

I

Solution

Question 8

Copper

Bromine

Oxygen

Iron

Solution

Question 9

Because of force exerted by the needle.

Because of force exerted by gas present in the balloon.

Because of decreasing kinetic energy of gas.

Because of high temperature inside the balloon.

Solution

Question 10

Solid

Liquid

Gas

Plasma

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

Hg, Si, O₂ and N₂

Na, Si and O₂

H₂, O₂ and C

Si, C and O₂