Willer Academy: Chemistry Test #1

Topic: Matter in Our Surroundings (NCERT Class 9 – Chapter 1)

Instructions:
✔ 10 Questions | Time Limit: 10 mins
✔ +4 for Correct | –1 for Incorrect | 0 for Unattempted
✔ Submit your answers to get detailed feedback instantly.

1. Matter is made up of:
a) Atoms b) Cells c) Molecules d) Atoms and molecules

2. Which of these has highest compressibility?
a) Solid b) Liquid c) Gas d) Plasma

3. Which of the following is not a state of matter?
a) Gas b) Liquid c) Vapor d) Solid

4. Temperature at which solid directly converts to gas is:
a) Melting point b) Condensation point c) Boiling point d) Sublimation point

5. Intermolecular space is maximum in:
a) Gases b) Solids c) Liquids d) Plasma

6. Which property allows gases to fill entire container?
a) Elasticity b) Compressibility c) Diffusion d) Fluidity

7. Boiling is affected by:
a) Temperature only b) Pressure only c) Temperature and pressure d) Volume and mass

8. Latent heat of fusion is the amount of heat to:
a) Freeze water b) Melt 1 kg of solid to liquid without temp change c) Raise temp of solid d) Evaporate 1 kg of liquid

9. Conversion of gas to liquid is called:
a) Freezing b) Condensation c) Vaporization d) Melting

10. Which of these defines matter?
a) Anything that has energy b) Anything that has weight c) Anything that occupies space and has mass d) All moving objects

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