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Q.

Car tyres are made of rubber and not of iron because

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a

Friction between rubber & concrete is less than that between iron & concrete

b

Iron tyres produce noise

c

Rubber is cheaper than iron

d

Rubber can give circular shape easily than iron

answer is D.

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Detailed Solution

As the friction is less in the case of rubber and concrete compared to iron and concrete. So, generally rubber is used in manufacturing tyres

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