zero, since it contains Cl₂

-1, since it contains Cl^-

+1, since it contains ClO^-

+1 and -1 since it contains ClO^- and Cl^-

HF is less polar than HBr

absolutely pure water does not contain any ions

chemical bond formation takes place when forces of attraction overcome the forces of repulsion

in covalency transference of electron takes place

[Fe(OH)₃]^3-

[Fe(Cl)₆]^3-

[Fe(CN)₆]^3-

[Fe(H₂O)₆]³⁺

Mn²⁺

Fe²⁺

Ti²⁺

Cr²⁺