Question

Sort the following chromium compounds by whether the cation is chromium(II) or chromium(III).

Chromium(II)
CrO
CrBr₂
Cr₃P₂

Chromium(III)
Cr₂S₃
CrI₃
CrN

Answer 1

To sort the given chromium compounds based on whether the cation is chromium(II) or chromium(III), we need to determine the oxidation state of chromium in each compound.

Step-by-step explanation:

To sort the given chromium compounds based on whether the cation is chromium(II) or chromium(III), we need to determine the oxidation state of chromium in each compound. Chromium(II) compounds have a +2 oxidation state, while chromium(III) compounds have a +3 oxidation state.

1. Chromium(II) compounds: CrO, CrBr2
2. Chromium(III) compounds: Cr2S3, CrI3, CrN

Therefore, the chromium compounds can be sorted as follows:

1. Chromium(II) compounds: CrO, CrBr2
2. Chromium(III) compounds: Cr2S3, CrI3, CrN

Chromium(II) compounds have a +2 oxidation state, while chromium(III) compounds have a +3 oxidation state.