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NEET2006Chemistryd and f Block ElementsActual

Assertion : K ₂ Cr ₂ O ₇ is used as primary standard in volumetric analysis. Reason : It has a good solubility in water.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of the assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of the assertion
  3. CIf assertion is true, but reason is false
  4. DBoth assertion and reason are false statements.

Correct answer

C. If assertion is true, but reason is false

Step-by-step solution

K ₂ Cr ₂ O ₇ is less soluble in water. K ₂ Cr ₂ O ₇ can be found in pure state and can be accurately weighed. It is not hygroscopic in nature. So K ₂ Cr ₂ O ₇ is used as a primary standard solution.

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