Given two statements| d and f Block Element| JEE MAIN 2023

JEE MAIN 2023

10-04-23 S1

Question

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:

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Both Statement I is true but Statement II is false

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 $\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7$.

Question Tags

JEE Main

Chemistry

Easy

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