HARD
9th CBSE
IMPORTANT
Earn 100

Pressure and temperature determine the state of a substance. Explain this in detail.

Important Questions on Matter in Our Surroundings

HARD
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 1
The SI unit of volume is the cubic metre (m3). The common unit of measuring volume in litre (L). Then, 1L=____dm3,1L=____mL and 1mL=____cm3.
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 2
Find out the incorrect increasing/decreasing order in the following
HARD
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 3
The kinetic energy of particles of water in three vessels X,Y and Z are EX,EY and EZ respectively and Ex>EY>Ez. Then the temperature of water in the three vessels are
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 4
Which of the following statement is correct?
HARD
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 6

You are given the following substance with their boiling and melting points.

Substance

 Boiling point (°C)

Melting point(℃)

A

 -183  -219 

B

 445  119 

C

 78  -15 

Point out the physical states of A, B and C at room temperature (30℃)

MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 7
Among the following, which one is the false statement?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 8

Effect of change of temperature on the physical state may be represented as

Question Image

What is X,Y and Z?

HARD
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 1 - Matter in Our Surroundings>Challengers*>Q 9
What will be the correct sequence of temperature when 25°C and 45°C are converted to Kelvin scale and Fahrenheit scale?