Fuels and Combustion
The difference between total carbon and fixed carbon of coal will be minimum in case of

Bituminous coal
Lignite
Anthracite
High temperature coke (V.M < 0.5%)

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Fuels and Combustion
Orsat apparatus is meant for

Gravimetric analysis of flue gas
Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride
None of these
Finding out combustion efficiency

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