Question

Name the substance which contract on heating ?

Answer 1

Answer:

Water at 0°C will contract on heating until it reaches 4°C and start expanding beyond that.

Explanation:

Answer 2

Among the rare exceptions to this rule, the compound zirconium tungstate stands out by virtue of the enormous temperature range over which it exhibits so-called "negative thermal expansion," contracting as it heats up and expanding as it cools, and because it does so uniformly in all directions.

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