Group VA and VIA Elements

In which compound nitrogen has maximum oxidation state____________________? A. N2O B. NO2 C. HNO2D. HNO3

Oxygen does not react with all except_________________? A. Alkali B. Acid C. WaterD. Metals

FeSO4 forms brown ring with________________? A. N2O3 B. NO2C. NO D. N2O

The gas which cannot be dried by conc. H2SO4 ? A. SO2B. H2S C. CO2 D. C2H4

Which of the elements show passivity when treated with conc. HNO3? A. Fe B. A C. CrD. All of the above

The element of group VIA which is a non-metal is________________? A. S B. Se C. Te D. Po

Which one of the following compounds usually smells like garlic ? A. P2O3 B. P2O5 C. H3PO3 D. All have same smell

The composition of brown ring in nitrate test is_________________? A. FeSO4.No B. FeSO4.No2 C. FeSO4.No3 D. FeSO4.N2o

Which one of the following is not the use of graphite ? A. Lead pencilsB. Abrasive C. Lubricant D. Electrode of electrolytic cell

Which of the following does not contain phosphorus ? A. Yolk of egg B. Bone C. NervesD. Steel