5053Chemical EngineeringMedium
There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?
AArsenic
BMercury
CLead
DAluminium
Correct answer
D. Aluminium
Explanation
The correct answer is Aluminium.
Correct answer
D. Aluminium
Explanation
The correct answer is Aluminium.
Calorific value of coal middling generated in coal washeries during washing of coal may be around ________ Kcal/kg?
In catalytic cracking, the________?
Visco-elastic behaviour of materials which is time dependent is common in________?
Net positive suction head (NPSH) of a centrifugal pump must be________?
The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?
Pick out the wrong statement?