Red phosphorous is changed into white phosphorous by______________________?

A. 30-35
B. 15-20
C. 65-70
D. 85-90

A. CaF2.3Ca3(PO4)2
B. 3Ca3(PO4)2
C. Ca(PO3)2
D. Ca(H2PO4)2

A. P2O3
B. PCl5
C. P2O5
D. H3PO4

A. High pressure, low reactants concentration, high temperature
B. High pressure, low reactants concentration, low temperature
C. High pressure, high reactants concentration, low temperature
D. Low pressure, high reactants concentration, low temperature

A. Dilute H2SO4
B. Concentrated H2SO4
C. Concentrated NHO3
D. Concentrated HCl

A. It is hygroscopic and explosive in nature
B. It is highly acidic in nature
C. It is a liquid at room temperature
D. Its nitrogen content is very less