Conversion of yellow phosphorus to red phosphorous is done in retorts – McqOptions

MCQOPTIONS

1.	Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450Â°C in the
A.	presence of an inert atmosphere.
B.	presence of a reducing atmosphere.
C.	absence of air.
D.	presence of an oxidising atmosphere.
Answer» D. presence of an oxidising atmosphere.

Discussion

No Comment Found

Related MCQs

Catalyst used in the manufacture of NH3 by Haber\'s process is finely divided
During nitric acid manufacture, catalytic oxidation of ammonia at 800Â°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH 3 to NO is about __________ percent.
P 2 O 5 content in superphosphate is about __________ percent.
Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550Â°C), because at low temperature
P 2 O 5 percentage in the phosphoric acid produced by wet process is about
An increase in the NH 3 /CO 2 ratio in urea manufacture results in
Which of the following solvents is used for the extraction of H 3 PO 4 from CaCl 2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?
Triple superphosphate which contains about 46% P 2 O 5 is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
In the manufacture of orthophosphoric acid by strong H 2 SO 4 leaching wet process, keeping the reactor temperature above 100Â°C, results in the formation of undesriable
Out of the following, N 2 content is minimum in