7767Chemical EngineeringMedium
The most matured coal out of the following is________?
ASub-bituminous
BSemi-anthracite
CLignite
DBituminous
Correct answer
B. Semi-anthracite
Explanation
The correct answer is Semi-anthracite.
Correct answer
B. Semi-anthracite
Explanation
The correct answer is Semi-anthracite.
Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
Personnel working in the market research group is responsible for the job of________?
Which of the following alloys does not contain nickel?
Which of the following is the most harmful for the human being?
________ liquor is best handled in a long tube vertical evaporator?
A change in state involving a decrease in entropy can be spontaneous, only if ________?