Which of the following is a chemical change?
TWA Demo Paper

Quiz
•
Science
•
9th Grade
•
Easy
Jitendra Chauhan
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Melting of ice
Boiling of water
Burning of paper
Dissolving salt in water
2.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
The process of converting a solid directly into a gas is called:
Sublimation
Condensation
Evaporation
Freezing
3.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Which of the following is a greenhouse gas?
Oxygen
Nitrogen
Carbon dioxide
Helium
4.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Which of the following is not a form of energy?
Thermal energy
Kinetic energy
Sound energy
Mass energy
5.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
The process of separation of components of a mixture based on their boiling points is called:
Filtration
Evaporation
Distillation
Chromatography
6.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Which of the following is an example of a physical change?
Rusting of iron
Digestion of food
Burning of wood
Melting of butter
7.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
The process by which green plants make their food is called:
Respiration
Digestion
Photosynthesis
Fermentation
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