In which compound nitrogen has maximum oxidation state____________________?
In which compound nitrogen has maximum oxidation state____________________?
A. N2O
B. NO2
C. HNO2
D. HNO3
Group VA and VIA Elements
-
-
Oxygen does not react with all except_________________?
Oxygen does not react with all except_________________?A. Alkali
B. Acid
C. Water
D. Metals -
FeSO4 forms brown ring with________________?
FeSO4 forms brown ring with________________?A. N2O3
B. NO2
C. NO
D. N2O -
The gas which cannot be dried by conc. H2SO4 ?
The gas which cannot be dried by conc. H2SO4 ?A. SO2
B. H2S
C. CO2
D. C2H4 -
Which of the elements show passivity when treated with conc. HNO3?
Which of the elements show passivity when treated with conc. HNO3?A. Fe
B. A
C. Cr
D. All of the above -
The element of group VIA which is a non-metal is________________?
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 ?
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_________________?
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 ?
Which one of the following is not the use of graphite ?A. Lead pencils
B. Abrasive
C. Lubricant
D. Electrode of electrolytic cell -
Which of the following does not contain phosphorus ?
Which of the following does not contain phosphorus ?A. Yolk of egg
B. Bone
C. Nerves
D. Steel