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- 1. Multiple Choice
................ can float on water surface.
aluminum
copper
cork
- 2. Multiple Choice
the density of petrol is .............. water
equal to
less than
more than
- 3. Multiple Choice
equal masses of different substances have ................ volumes.
equal
similar
different
- 4. Multiple Choice
................. gas is used in filling balloons of celebration.
hydrogen
nitrogen
oxygen
- 5. Multiple Choice
metals are characterized by .....................
all answers
high melting point
conductivity of heat
conductivity of electricity
- 6. Fill in the Blank
the temperature at which the matter begins to change from liquid to gas.
- 7. Fill in the Blank
the temperature at which the matter begins to change from solid to liquid.
- 8. Fill in the Blank
........................ is the substance that allow the electricity to flow through.
- 9. Multiple Choice
the density of a piece of metal whose mass is 30 gm and its volume is 10 cm3 is ................
1/3 gm/cm3
3 cm3/gm
3 gm/cm3
- 10. Multiple Choice
cooking pans are made of aluminum as it has low melting point
true
fase
- 11. Multiple Choice
electric wires are made up of copper
true
false
- 12. Multiple Choice
silver and gold are very active
true
false
- 13. Multiple Choice
............. is less active metal
iron
potassium
silver
- 14. Multiple Choice
the density of wax is equal to water
false
true
- 15. Multiple Choice
we can distinguish between ......................... by color.
salt & sugar
silver & gold
perfume & vinegar
- Answer choicesTagsAnswer choicesTags