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- 1. Multiple Choice
Which of the following materials is hard, opaque and shines?
Rubber
Plastic
Wood
Tin
- 2. Multiple Choice
Which property of clay is useful for making pots and bricks?
Opacity
Non-magnetic nature
A good conductor of heat
malleability
- 3. Multiple Choice
Which of the following materials is suitable to make raincoats?
Cotton
Plastic
Silk
Paper
- 4. Multiple Choice
Why are most of the balloons, tyres and footballs made of rubber?
It is naturally available.
It is cheap.
It is an electrical insulator.
It is soft and flexible.
- 5. Multiple Choice
If opacity is the distinct feature of wood, then what is glass known for in the same way?
Its transparency
Its magnetic nature
Its conductivity to heat
Its lustrous nature
- 6. Multiple Choice
A mirror is
opaque.
transparent
translucent.
flexible
- 7. Multiple Choice
When Amrita was asked to pick up a few articles from a collection, she picked up the following:
Wooden scale
Glass test tube
Paper basket
Which of the following articles is she most likely to pick up the next
Steel cup
Iron chain
Rubber gloves
Copper wire
- 8. Multiple Choice
Which characteristics given below are of metals?
(i) They are hard.
(ii) They have lustre.
(iii) They are good conductors of electricity
Only (i) and (ii
Only (ii) and (iii)
Only (i) and (iii)
i), (ii) and (iii)
- 9. Multiple Choice
Why are paper bags preferred over plastic bags?
Paper bags are lighter.
Paper bags are stronger.
Paper bags are cheap
Paper bags are biodegradable.
- 10. Multiple Choice
A vendor sells white powdered salt mixed with white powdered stone. Which of these properties will help you detect his malpractice?
Ductility
Opacity
Density
Solubility
- 11. 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
- 12. Multiple Choice
Kerosene does not dissolve in water. What are they called?
Immiscible liquids
Solute and solvent
Solvent and solution
Miscible liquids
- 13. Multiple Choice
Which is the most essential property of a substance to be used as a cooking vessel?
Good conductor of heat
Ductility
Malleability
All of the above
- 14. Multiple Choice
Which of the combinations is the odd one out?
Ink and water
Milk and water
Oil and water
Lime juice and water
- 15. Multiple Choice
Which of the following type of bodies form sharp shadows when placed in the path of light?
Transparent
Translucent
Transparent and translucent
Opaque
- 16. Multiple Choice
Mohan is able to bend the rod because it is
light.
hard
water proof.
flexible
- 17. Multiple Choice
student added blue ink to a beaker containing water. After a few minutes the colour of water changed to blue.
Which of these properties led to this colour change?
Miscibility
Malleability
Ductility
Compressibility
- 18. Multiple Choice
Abhi bought an object. It is made of a hard material. It is fragile (easy to break) and allows light to pass through it.What can the object be?
Shoes
Mirror
Cricket bat
Fish tank
- 19. Multiple Choice
Which of these properties of water helps in the washing of clothes?
Transparency
Solubility
Conductivity
Compressibility
- 20. Multiple Choice
Hussain was applying paint on the wall during which some of the paint fell on his hands. Instead of using water, Hussain used kerosene oil to wash his hands.
Which of the following options explains Hussain'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.
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