Question

The substance expected to have the highest ignition temperature
out of the following is
(a) kerosene (c) coal
(b) petrol (d) alcohol

Answer 1

Answer:

coal

Explanation:

Coal has an ignition temperature of 600 Celsius making it the highest among the given options. Coal is a very important agent that finds its use in almost every sector. It is one of the biggest natural resources that are being used.

Answer 2

Explanation:

when 20 drops of water is added to a graduated cylindrical container filled with water,the level of the liquid rises from 10 ml to 20 ml.calculate the mass of each water drop.