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Chemistry
Assertion: K2Cr2O7 is used as primary standard in volumetric analysis. Reason: It has a good solubility in water.
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Q.
Assertion :
$K_2Cr_2O_7$ is used as primary standard in volumetric analysis.
Reason :
It has a good solubility in water.
AIIMS
AIIMS 2006
The d-and f-Block Elements
A
If both assertion and reason are true and reason is the correct explanation of assertion
51%
B
If both assertion and reason are true but reason is not the correct explanation of assertion
21%
C
If assertion is true but reason is false
24%
D
If both assertion and reason are false
4%
Solution:
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.