Water is not considered suitable for use in thermometers. Give the reason for the same.

Explanation

It is unsuitable due to following reasons:
(i) Anomalous behaviours of its expansion (not uniform)
(ii) Large specific heat and low thermal conductivity
(iii) Temperature range (freezing & boiling ) ` 0^(@)C & 100^(@) ` are small .
(iv) Transparent (so visible)