K2Cr2O7 is generally preferred than Na2Cr2O7 in volumetric analysis as Na2Cr2O7 is hygroscopic in nature, therefore it is difficult to prepare its standard solution for volumetric analysis as accurate weighing is not possible in normal atmospheric conditions. A hygroscopic substance can absorb moisture from the atmosphere due to which there will be inaccuracy in weight.
Given below are two statements: Statement I : Aqueous solution of K_2 Cr_2 O_7 is preferred as a primary standard in volumetric analysis over Na_2…
JEE Main 2023 — Chemistry Inorganic Chemistry
2023mcqmedium
Given below are two statements:
Statement I : Aqueous solution of K2Cr2O7 is preferred as a primary standard in volumetric analysis over Na2Cr2O7 aqueous solution.
Statement II : K2Cr2O7 has a higher solubility in water than Na2Cr2O7. In the light of the above statements, choose the correct answer from the options given below:
Official previous-year question
Held on 10 Apr 2023 · Verified 6 Jul 2026.
Options
- A
Statement I is false but Statement II is true
- B
Both Statement I and Statement II are true
- C
Statement I is true but Statement II is false
- D
Both Statement I and Statement II are false
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