The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________?

A. F2
B. Cl2
C. Br2
D. I2

The halogen which reacts very slowly with halogen is________________?

A. Fluorine
B. Chlorine
C. Bromine
D. Iodine

The halogen having highest electron affinity is_____________________?

A. Fluorine
B. Chlorine
C. Bromine
D. Iodine

Bromine can be liberated from KBr solution by the action of _______________?

A. Iodine solution
B. Chlorine
C. Nacl
D. Ki

Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

A. Cl2o
B. Clo2
C. Cl2o6
D. Cl2o7

Which of the elements show passivity when treated with conc. HNO3?

A. Fe
B. A
C. Cr
D. All of the above

The gas which cannot be dried by conc. H2SO4 ?

A. So2
B. H2s
C. Co2
D. C2h4

FeSO4 forms brown ring with________________?

A. N2o3
B. No2
C. No
D. N2o

Oxygen does not react with all except_________________?

A. Alkali
B. Acid
C. Water
D. Metals

In which compound nitrogen has maximum oxidation state____________________?

A. N2o
B. No2
C. Hno2
D. Hno3