The balanced chemical equation for the reaction between 2-propanol and sodium dichromate in acidic medium is:

3CH3CH(OH)CH3 + Na2Cr2O7 + 8H2SO4 → 3CH3COCH3 + Na2SO4 + Cr2(SO4)3 + 8H2O

In this reaction:

- 2-propanol is oxidized to acetone (CH3COCH3).

- Sodium dichromate (Na2Cr2O7) acts as the oxidizing agent.

- Sulfuric acid (H2SO4) provides the acidic medium for the reaction.

- Sodium sulfate (Na2SO4) and chromium sulfate (Cr2(SO4)3) are formed as byproducts.

- Water (H2O) is also produced as a byproduct.