MCQ
Given below are two statements

Statement $I$: Aqueous solution of $K _2 Cr _2 O$, is preferred as a primary standard in volumetric analysis over $Na _2 Cr _2 O$, aqueous solution

Statement $II:$ $K _2 Cr _2 O$, has a higher solubility in water than $Na _2 Cr _2 O _7$

In the light of the above statements, choose the correct answer from the options given below:

  • A
    Both Statement $I$ and Statement $II$ are true
  • B
    Both Statement $I$ and Statement $II$ are false
  • Both Statement $I$ is true but Statement $II$ is false
  • D
    Both Statement $I$ is false but Statement $II$ is true

Answer

Correct option: C.
Both Statement $I$ is true but Statement $II$ is false
c
(1) $K _2 Cr _2 O$, is used as primary standard. The concentration $Na _2 Cr _2 O _7$ changes in aq. solution.

(2) It is less soluble than $Na _2 Cr _2 O _7$.

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