A. 1
B. 3
C. zero
D. 2
Phosphoric acid is a weak acid and its basicity is____________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. 260°C
B. 360°C
C. 630°C
D. 620°C
P2O5 is a hygroscopic powder which sublimes at______________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. Phosphine
B. Phosphorus
C. Water
D. Phosphorus pentoxide
A. P2O5
B. H2SO4
C. Both A and B
D. PCI5
Acetic anhydride can be obtained by treating ethyl alcohol with___________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. White
B. Red
C. Black
D. Violet
Allotropic form of phosphorus that is poisonous is___________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. Light bearing
B. Fire
C. Impure
D. Tetrahedral
Phosphorus is a Greek word and it means_________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. PCI5
B. P2O3
C. P2O5
D. All of the above
A. Reaction is exothermic
B. It is insoluble in water
C. Dilute acid is produced
D. All of above
SO3 is not absorbed in water directly because__________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. ionic
B. covalent
C. polar
D. all varieties are possible
Compounds of nitrogen and phosphorus are mostly________________? Read More »
Chemistry Mcqs, Group VA and VIA Elements A. Arsenic
B. Phosphorus
C. Antimony
D. Bismuth
Which of the following is different with respect to physical appearance ? Read More »
Chemistry Mcqs, Group VA and VIA Elements