Is coal elastic or inelastic

Answer 1

There are 2 different types price elasticity of demand and price elasticity of supply.

If you meant to ask is demand for coal price elastic on inelastic, answer is yes, it is price inelastic. The demand for coal, is unlikely to drop much even if the price of it increases, it can be said that it is a 'necessity'. Since the quantity demanded decreases less than proportionate than the increase in price, it is said to be price inelastic.