1. Ions & radicals MCQs - Chemistry Notes

The formulas of sulphite; thiosulphate; chlorate; and perchlorate are respectively

Choose the correct answer.

SO42-, S2-, Cl- and ClO-

SO42-, SO32-, ClO3- and ClO4-

SO32-, S2O32-, Cl- and ClO4-

SO32-, S2O32-, ClO3- and ClO4-

The symbol of meta-aluminate is

Choose the correct answer.

AlO2

AlO2-

AlO3-

AlO3

The formulas of sulphite; sulphide; and sulphate are respectively

Choose the correct answer.

SO42-, S2- and SO32-

SO3, SO2 and SO4

S-, SO2(2-) and SO4(+2)

SO32-, S2- and SO42-

Sulphate ion is

Choose the correct answer.

A compound

An element

A divalent radical

A trivalent radical

The formulas of nitrite; sulphite; nitrate; and sulphate ions are respectively

Choose the correct answer.

N3-, SO42-, NO2- and SO32-

NO3-, SO32-, NO2(2-) and SO42-

NO3(2-), SO32-, NO3(2-) and SO42-

NO2-, SO32-, NO3- and SO42-

Which one of the following is a complex radical?

Choose the correct answer.

CO32-

Fe3+

Hg22+

[Fe(CN)6]3-