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Which of the following statement(s) is (...

Which of the following statement(s) is (are) correct when. a mixture
of NaCl and `K_2Cr_2O_7` is gently warmed with conc. `H_2SO_4` ?

A

A deep red vapour is evolved

B

The vapour when passed through NaOH solution, gives a yellow solution.

C

Chlorine gas is also evolved.

D

Chromyl chloride is formed

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
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  2. The correct statements(s) about Cr^(2+) and Mn^(3+) is (are) [Atomic n...

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  3. Which of the following statement(s) is (are) correct when. a mixture ...

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  4. The yellow solution (X) is

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  5. The yellow solution (X) is

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  6. Which of the following compounds will give a yellow precipitate with i...

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  7. The yellow solution (X) is

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  8. The oxidation state of Cr in compound CrO5 is

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  9. Describe the formation of Coal

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  10. Why is helium placed in p-block elements although its last electron en...

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  11. The atomic numbers of three lanthanide elements X,Y and Z are 65,68 a...

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  12. Ce (Z = 58) and Yb (Z = 70) exhibit stable +4 and +2 oxidation states ...

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  13. Which of the following statements is not true?

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  14. The questions given below consist of an Assertion and the Reason. Use ...

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  15. Assertion : Cuprous salts are diamagnetic. Reason : Cu has 3d-filled...

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  16. Electronic configuration of Fe^2+.........

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  17. Assertion : La(OH)3 is less basic than Lu(OH)3 . Reason : Basic charac...

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  18. Assertion : FeCl3 reacts with KCNS to give blood red colouration. Re...

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  19. Sodium chloride is used to clear snow from roads. Explain.

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  20. Assertion : Zn^(2+) and Cu^(2+) are colourless. Reason : Both Zn^(2+) ...

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