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- 1. Multiple Choice
Door locks are made of metals. Which property of metals is made use of ?
They have lustre
They are opaque
They are good conductors of heat.
They are hard and strong
- 2. Multiple Choice
Kerosene does not dissolve in water. What are they called?
Immiscible liquids
Solute and solvent
Solvent and solution
Miscible liquids
- 3. Multiple Choice
Which of the following dissolves in water
Wood
A piece of Rock
A cube of Sugar
A piece of plastic
- 4. Multiple Choice
Which of the following substance is translucent?
Oily paper
Plain paper
White paper
Coloured paper
- 5. Multiple Choice
Which of the following has lustre
A plastic toy
A newspaper
A cotton Shirt
A stainless Steel Spoon
- 6. Multiple Choice
Take two samples, one is oil and other is water. Mix the two. You observe that -
They are soluble.
Oil floats on water
Water floats on oil
None of the above
- 7. Multiple Choice
Which of the following has dull appearance ?
aluminium foil
steel chair
steel bucket
brick
- 8. Multiple Choice
Siddhesh was applying paint on the wall during which some of the paint fell on his hands. Instead of using water, Siddhesh used kerosene oil to wash his hands.
Which of the following options explains Siddhesh's decision?
Kerosene is softer than water.
Kerosene smells better than water.
Paints dissolve in kerosene and not in water.
Kerosene is more easily available than water.
- 9. Multiple Choice
The space between particles is maximum in -
solids
liquids
gases
both solids and liquids
- 10. Multiple Choice
Transparent materials allow the light to pass through them -
partially
completely
sometimes only
not at all
- 11. Multiple Choice
Which of the materials will you identify as transparent?
Magnifying glass, Mirror
Magnifying glass, Stainless steel plate
Glass tumbler, Magnifying glass
Stainless steel plate, Glass tumbler
- 12. Multiple Choice
Milk and water dissolve in each other. What are they called?
Immiscible liquids
Solvent and solutions
Miscible liquids
Suspensions
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