1.
Caking index of a coal is a measure of its _______________________?

2.
Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?

3.
The shift conversion reaction taking place during water gas manufacture is given by__________________?

4.
_____________ of the coal is the basis for Seylor’s coal classification?

5.
In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?

6.
In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?

7.
Washing of coal decreases its_________________?

8.
To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?

9.
The gas which contributes maximum to the heating value of natural gas is __________________?

10.
Nitrogen in coal_________________?