Fuels and Combustion
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.

1700-1800
400-500
1400-1500
900-1000

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Fuels and Combustion
With increase in the temperature of carbonisation of coal

Methane content in the coke oven gas decreases and carbon monoxide content increases
All of these
Hydrogen content of coke oven gas increases due to cracking of hydrocarbons
Calorific value of the coke oven gas decreases due to cracking of hydrocarbons which is not compensated by increase in CO & H? content

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