Have an account?
Skip to Content
Build your own quiz
20 questions
Show Answers
See Preview
- 1. Multiple Choice
Which of the following is an element?
NaCl
HI
HF
He
- 2. Fill in the Blank
The only liquid non-metal is ____________.
- 3. Multiple Choice
By which method we can separate the mixture of NH4Cl and NaCl?
Sublimation
Condensation
Centrifugation
None
- 4. Multiple Choice
When the liquid is spun rapidly, the denser particle are forced to set at the bottom and the lighter particles started coming at the top. This principle is used in:
Centrifugation
Fractional Distillation
Evaporation
Tunneling
- 5. Multiple Choice
The continous zig-zag movement of colloidal particles in a dispersion medium is called
Dispersion
Tyndall effect
Brownian movement
None
- 6. Multiple Choice
A pure substance which is made up of only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is referred to as:
Compound
Element
Molecule
Mixture
- 7. Fill in the Blank
Name the non metal which is good conductor of electricity.
- 8. Multiple Choice
When two liquids do not mix, they form two separate layers are known as miscible liquids.
True
False
- 9. Multiple Choice
According to the definition of pure substance, which of the following is a pure substance?
Ice
Mercury
Iron
All of these
- 10. Multiple Choice
Which of the following property does not describe a compound?
It is composed of two or more elements
It is a pure substance
It cannot be separated into constituents by physical means
It is mixed in any proportion by mass.
- 11. Fill in the Blank
If we put camphor in an open container, its amount keeps on decreasing due to the phenomenon of __________.
- 12. Multiple Choice
Gallium has high melting point.
True
False
- 13. Multiple Choice
Salt can be obtained from sea water by:
Filteration
Decantation
Both
None
- 14. Fill in the Blank
The common method used to separate the Colors in the dyes is________.
- 15. Multiple Choice
Which of the following is physical change?
Melting of iron
Rusting of iron
Decaying of wood
All of these
- 16. Multiple Choice
Fog is an _______.
Sol
Aerosol
Emulsion
None
- 17. Multiple Choice
Colloidal solutions are actually heterogeneous.
True
False
- 18. Fill in the Blank
The colloidal solution in which the dispersed phase and dispersed medium is liquid is called_________.
- 19. Fill in the Blank
Kerosene and water can be separated by using the ________.
- 20. Multiple Choice
Which of the following is not the property of metals?
Brittleness
Lustrous
Sonorous
All the above
- Answer choicesTagsAnswer choicesTags