Concept:A thermometric liquid must expand uniformly with a rise in temperature so that the scale remains linear and readings are accurate.
Explanation:Water expands non-uniformly when heated.
Its expansion rate changes with temperature, so equal volume changes do not represent equal temperature differences.
This makes it difficult to calibrate a thermometer using water.
Although water also clings to glass and boils at a relatively low temperature, these are not the main reason compared to its irregular expansion.
For a good thermometric liquid, expansion should be regular and easily measurable.
Water does not satisfy this essential condition.
Answer:B. does not expand uniformly