Chemical Engineering MCQs

6108 MCQs  (Page 501 of 611)

Ammonium nitrate is___________________?
A. Having about 40% n2
B. Not hygroscopic
C. Not prone to explosive thermal decomposition
D. Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
Nitrolime is___________________?
A. Calcium nitrate
B. Calcium ammonium nitrate
C. A mixture of nitric acid and lime
D. A mixture of ammonium nitrate and calcium nitrate
Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of____________________?
A. Comparatively higher pressure drop
B. High cost of the high pressure vessel used for the reactor
C. Higher pumping cost
D. Chances of entrainment and disturbance of catalyst bed
Conditioners like finely divided peat are added to the fertiliser to________________?
A. Counteract burning
B. Avoid caking & hardening
C. Produce bulk
D. Increase its solubility