Red phosphorus on heating nitric acid gives.
Phosphides
Phosphine
Phosphoric acid
Super phosphate
Phosphoric acid is
Dibasic
Tetrabasic
Monobasic
Tribasic
A non-poisonous allotropy of phosphorus is
White phosphorus
Red phosphorus
Violet phosphorus
Scarlet phosphorus
Phosphorite is
3 Ca3(PO4)2 CaCl2
3 Ca3(PO4)2 CaF2
Ca3(PO4)3
H3PO4
Phosphorus burns in air or oxygen to give a dense white fumes of
P2O5
H3PO3
P2O3
The slag formed in the electrical process of manufacture of phosphorus is
Carbon dioxide
Calcium phosphate
Calcium silicate
Phosphorbronze in an alloy of phosphorus with
Copper and Zinc
Copper and Tin
Copper and Magnesium
Copper and Vanadium
Phosphorus reacts with sodium hydroxide to give
Phosphate
Phosphide
The percentage of calcium phosphate present in bones are
50%
60%
75%
45%
Super Phosphate is a
Nitrogenous fertilizer
Phosphatic fertilizer
Potassium fertilizer
Calcium fertilizer
