Give reasons for the following :
Fluorine shows an oxidation state of -1 only.

Fe show on oxidation state of +1 in:

Give reason for the following : (i) Mn shows the highest oxidation state of +7 with oxygen but with fluorine, it shows the highest oxidation state of +4 (ii) Transition metals show variable oxidation states. (iii) Actinoids show irregularities in their electronic configurations.

Which of the following can show +7 oxidation state?

Oxygen shows +2 oxidation state is

Give reasons for the following : Fluorine has lower electron gain enthalpy than chlorine.

Give reasons for the following : (i) Though nitrogen exhibits + 5 oxidation state, it does not fonn pentahalide. (ii) Electron gain enthalpy with negative sign of fluorine is less than that of chlorine. (iii) The two oxygen-oxygen bond lengths in ozone molecule are identical.

Cerium shows oxidation state of +4 because

Give reasons for the following: Florine gives only one oxide but chlorine gives a series of oxides.

Which of the following exhibits only +3 oxidation state?

Which of the following exhibits only +3 oxidation state?