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Which of the statements is not true ?...

Which of the statements is not true ?

A

On passing `H_2S` through acidified `K_2Cr_2O_7` solution, a milky colour is observed

B

`Na_2Cr_2O_7` is preferred over `K_2Cr_2O_7` in volumetric analysis

C

`K_2Cr_2O_7` solution in acidic medium is orange

D

`K_2Cr_2O_7` solution becomes yellow on increasing the pH beyond 7

Text Solution

Verified by Experts

The correct Answer is:
B

`Na_2Cr_2O_7` is hygroscopic.
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -Past Years Questions
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  3. Which of the statements is not true ?

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  6. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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  7. F2 is the formed by reacting K2MnF6 with

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  8. Assuming complete ionization, same moles of which of the following com...

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  9. To protect iron against corrosion, the most suitable metal plating on ...

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  10. When copper is heated with conc.HNO(3) it produces

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  11. Silver obtained from argentiferrous lead containing lead impurity is p...

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  12. Which of the following metals is obtained by leaching out process usin...

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  13. Which of the following does not react with AgCl?

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  14. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

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  15. The compound insoluble in water is

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  16. Name the gas that can readily decolourise acidified KMnO(4) solution:

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  17. The magnitude and permanganate ions are tetrahedral due to

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  18. The calculated spin only magnetic moment of Cr^2+ ion is:

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  19. Identify the incorrect statement

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  20. Urea reacts with water to form A which will decompose to form B. B whe...

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