Search
.Management Sciences
Category: Group VA and VIA Elements
Phosphorus is a Greek word and it means_________________?
0
A. Light bearing
B. Fire
C. Impure
D. Tetrahedral
Phosphene gas will be produced if phosphorous acid is subjected to___________________?
A. Oxidation
B. Reduction
C. Decomposition
D. Both b & c
All the elements in group VIA are ___________________ in nature?
A. hygroscopic
B. metals
C. polymeric
D. all of above
Which of the following will give phosphoric acid one reaction with water_________________?
A. PCI5
B. P2O3
C. P2O5
D. All of the above
When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?
A. an acid
B. a dehydrating agent
C. an oxidizing agent
D. as sulphonating agent
Which of the following is different with respect to physical appearance ?
A. Arsenic
B. Phosphorus
C. Antimony
D. Bismuth
Which one of the following compounds usually smells like garlic ?
A. P2O3
B. P2O5
C. H3PO3
D. All have same smell
Recent Comments