Question

which of the following contracts on heating lukewarm water,ice,mercury ,iron

Answer 1

Answer:

water contract on heating

Answer 2

Ice contracts on heating.

• When ice is heated, it converts to water and expands at a temperature of 0° C, and then when it is heated further between 0°C and 4°C, instead of expanding it begins to contract.
• This phenomenon is known as anomalous expansion of water.
• All the other options only expand on heating due to the increase in kinetic energy of the molecules.
• Hence the correct option is ice.