MEDIUM
9th CBSE
IMPORTANT
Earn 100

Which of the following is an incorrect statement?
When steam at 100 °C is allowed to cool, it gives out heat energy to form water at 100 °C. The loss of heat energy

24.42% studentsanswered this correctly

Important Questions on The Matter in Our Surroundings

HARD
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 14
Which is the incorrect statement.
Desert coolers, cool better on hot and dry day because
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 16
Naphthalene balls disappear with time without leaving any residue. Such change is called 
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 20
We wear cotton clothes in summer because:
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 21
Average kinetic energy of the molecules of the matter is a measure of : 
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 23
SI unit of temperature is:
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 24
Carbon dioxide gas can be converted into solid state, which is a white fluffy mass. The solid state of carbon dioxide is called:
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 26
The thermal energy of a body is the same as the:
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 1 - The Matter in Our Surroundings>EXERCISE 1D>Q 1
How does the petroleum gas get liquefied?