Blast furnace gas burns with a bluish flame, because of the presence of____________________?

Related Mcqs:

Bulk density of pulverised coal may be about ______________ kg/m3?

A. 100 B. 500 C. 1000 D. 1500...

Nitrogen present in the flue gas is determined in the Orsat apparatus by absorbing it in_____________________?

A. KOH B. Ammoniacal cuprous chloride C. Pyrogallol solution D. None of these...

Gobar gas is produced by the _______________ of ‘gobar’ (cow dung) ?

A. Hydrolysis B. Fermentation C. Oxidation D. Dehydration...

The calorific value of a gas of composition CO2 = 20%, H2 = 50%, CH4 = 30%, is y. If the composition of gas is changed to H2 = 50%, CH4 = 30%, CO2 = 10%, N2 = 10%, then the calorific value will be___________________?

A. y B. 0.95 y C. 1.05 y D. 1.8 y...

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

A. High rank coals have higher amount of volatile matter B. Ratio of fixed carbon to volatile matter increases C. Oxygen content progressively decreases D. Calorific value of the coal increases...