Assertion: K2Cr2O7 is used as primary standard in volumetric analysis. Reason: It has a good solubility in water.

Question

Assertion: K2Cr2O7 is used as primary standard in volumetric analysis. Reason: It has a good solubility in water. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Potassium dichromate is used in volumetric analysis mostly in oxidation titration because it is not deliquescent. It forms compound with other elements and precipitate out. So the assertion is true but the reason is false.

Q. Assertion : K2​Cr2​O7​ is used as primary standard in volumetric analysis. Reason : It has a good solubility in water.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Potassium dichromate is used in volumetric analysis mostly in oxidation titration because it is not deliquescent. It forms compound with other elements and precipitate out. So the assertion is true but the reason is false.

Q. Assertion : $K_{2} C r_{2} O_{7}$ is used as primary standard in volumetric analysis.
Reason : It has a good solubility in water.