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- 1. Multiple Choice
An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?
(a) Mustard oil
(b) Soft drink
(c) Coconut oil
(d) Kerosene
- 2. Multiple Choice
Pick one material from the following which is completely soluble in water.
(a) Chalk powder
(b) Tea leaves
(c) Glucose
(d) Sawdust
- 3. Multiple Choice
You are provided with the following materials
(i) magnifying glass
(ii) mirror
(iii) stainless steel plate
(iv) glass tumbler.
Which of the above materials will you identify as transparent?
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i) and (iv)
(d) (iii) and (iv)
- 4. Multiple Choice
Binu found a bag containing the following materials.
(i) Mirror
(ii) Paper stained with oil
(iii) Magnet
(iv) Glass spectacles
Help Binu in finding out the material(s) which is/ are opaque.
(a) (i) only
(b) (iv) only
(c) (i) and (iii)
(d) (ii) and (iv)
- 5. Multiple Choice
While doing an activity in class, the teacher asked Pinky to handover a translucent material. Which among the following materials will Pinky pick and give her teacher?
(a) Glass tumbler
(b) Mirror
(c) wax paper,
(d) Aluminium foil
- 6. Multiple Choice
Which pair of substances among the following would float in a tumbler half filled with water?
(a) Cotton yarn, pen
(b) Feather, plastic ball
(c) steel spoon, oil drops
(d) Rubber band, coin
- 7. Multiple Choice
Which among the following are commonly used for making a safety pin?
(a) Wood and glass
(b) Plastic and glass
(c) Leather and plastic
(d) Steel and plastic
- 8. Multiple Choice
Which of the following materials is not lustrous?
(a) Gold
(b) Silver
(c) Wood
(d) Diamond
- 9. Multiple Choice
Which of the following statements is not true?
(a) Materials are grouped for convenience.
(b) Materials are grouped to study their properties.
(c) Materials are grouped for fun.
(d) Materials are grouped according to their uses.
- 10. Multiple Choice
Which type of the following materials is used for making the front glass (wind screen) of a car?
(a) Transparent
(b) Translucent
(c) Opaque
(d) All the above
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