Given below are two statements
Statement-I: Aqueous solution of $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ is preferred as a primary standard in volumetric analysis over $\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7$ aqueous solution
Statement II: $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ has a higher solubility in water than $\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7$
In the light of the above statements, choose the correct answer from the options given below:
Select the correct option:
A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Both Statement I is true but Statement II is false
D
Both Statement I is false but Statement II is true
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
(1) $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ is used as primary standard. The concentration $\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7$ changes in aq. solution.
(2) It is less soluble than $\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7$.
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