Question

Match the following
1) cr2o2-7 1) carbonate
2) cid-3 2) chromate
3) co2-3 3) dichromate
4) cro2-4 4) chlorate​

Answer 1

Answer:

Chromate salts contain the chromate anion, CrO2−

4. Dichromate salts contain the dichromate anion, Cr

2O2−

7. They are oxoanions of chromium in the 6+ oxidation state and are moderately strong oxidizing agents. In an aqueous solution, chromate and dichromate ions can be interconvertible.

Answer 2

1. cr2o2-7 → chlorate

2. cid-3 2 → carbonate

3. co2-3 3 → chromate

4. cro2-4 4 → dichromate