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Q.

Which of the following statements are true    a)    Rubber contracts on heating    b)    Water expands on freezing    c)    Water contracts on heating from 00C to 40C    d)    Water expands on heating from 40C to 400C

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a

(a) is correct

b

(b) and (c) are correct

c

(c)&(d) are correct

d

all are correct

answer is D.

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Detailed Solution

On heating upto 40C volume of water decreases upto 40C and above 40C volume increases on heating. Volume of ice is more than that of same mass of water. Hence statements (a), (b), (c) and (d) all are correct.
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