EASY
9th CBSE
IMPORTANT
Earn 100

For each of the following, use letters to indicate physical state of matter. 's' for solid, 'l' for liquid, 'g' for gaseous, 'p' for plasma, B.E.C. for Bose-Einstein Condensate. 

S.No. Specific characteristics Physical state
1 Ionised gases   
2 Most ordered state   
3 Least ordered State   
4 Fixed volume, no shape   
5 Cooling gas at super low temperature  

 

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Important Questions on Matter in Our Surroundings

EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 9
The common characteristics of solid and liquid states are : 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 10
Choose the correct statement of the following.
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 11
The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C respectively. Which one of the following correctly represents their boiling points in Kelvin scale? 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 12
Which condition out of the following will increase the evaporation of water? 
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 13
In which of the following conditions, the distance between the molecules of hydrogen gas would increase? 
(i) Increasing pressure on hydrogen contained in a closed container 
(ii) Some hydrogen gas leaking out of the container
(iii) Increasing the volume of the container of hydrogen gas
(iv) Adding more hydrogen gas to the container without increasing the volume of the container
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 14
Evaporation of a liquid at room temperature leads to a _____effect.  
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 15
The phenomenon of change of liquid into vapours at any temperature below its boiling point is called _____.
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 1 - Matter in Our Surroundings>ASSESS YOURSELF>Q 16
Sea water boils below 100°C.