Fuels and Combustion
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

Ammoniacal cuprous chloride
None of these
KOH
Pyrogallol solution

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Fuels and Combustion
Cannel coal

Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named
Is non-coking
Has a high volatile matter content and burns with a luminous smoky flame
All of these

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Fuels and Combustion
Fixed carbon in coal is defined as

Hundred minus the percentage of volatile matter, ash and moisture
The one which is present in the residue after combustion
That present in volatile matters
The total quantity of carbon present in the coal

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