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AIIMS 2015
Exam
AIIMS
Year
2015
Subject
Chemistry
Chapter
d and f Block Elements

AIIMS 2015 · Chemistry · d and f Block Elements

Assertion: K_2 Cr_2 O_7 is used as primary standard in volumetric...

Assertion: K2Cr2O7\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{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 assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

K2Cr2O7\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 is less soluble in water. It can be found in pure state and can be accurately weighed. It is not hygroscopic in nature. So, K2Cr2O7\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 is used as a primary standard solution.
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