Question

K2Cr2O7 cannot be used for​

Answer 1

Answer:

Answer:

Explanation:

Potassium Dichromate acts as an oxidizing agent in acidic medium only. It can't be used as a self indicator. This is because its reduction product (Cr3+) is green which hinders in the visual detection of the endpoint by observing dichromate colour. Thus an indicator is a must in this titration.

Answer 2

Answer:

Potassium Dichromate acts as an oxidizing agent in acidic medium only. It can't be used as a self indicator.

Explanation:

Since potassium dichomate behaves as an oxidizing agent only in acidic medium, therefore it cannot be used self indicator, as its reduction product gets itself blocked in the visual detection at the end of reaction

K2Cr2O7 cannot be used as a self indicator because its reduction product (Cr3+) is green which hinders in the visual detection of the endpoint by observing dichromate colour.