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Which of the ...

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Which of the following groups contain only soft items?

Groups

Objects

I

Glass, coin, stone

II

Cotton, sponge, toothpaste

III

Stone, cotton, glass

IV

Cotton, sponge, rubber band

V

Coin, plastic, sponge

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Q. Study these groups of objects. In each, one object does not belong in the group.

Group I	Group II	Group III
cotton	wood	paper
sponge	iron	wood
stone	aluminium	cloth
silk	copper	glass

Which objects do not belong in these groups?
(a) stone, wood, paper
(b) stone, copper, glass
(c) sponge, wood, glass
(d) stone, wood, glass

Q. Which of the following groups of materials contain only conductors?
(a) copper, zinc, glass, plastic
(b) zinc, cotton, iron, plastic
(c) copper, gold, silver, iron
(d) glass, wood, cotton, air

Q. Which of the following groups of materials contains only metals?
(a) copper, iron, plastic, glass
(b) copper, gold, iron, silver
(c) cotton, iron, wood, gold
(d) glass, wood, cotton, air

Which pair of substances among the following would float in a tumbler half-filled with water ?

(a) Cotton thread, thermocol

(b) Feather, plastic ball

(c) Pin, oil drops

(d) Rubber band, coin

Q. Which one of the following has a hard surface?
(a) sponge
(b) pillow
(c) stone
(d) mattress

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