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The aqueous solution of the following sa...

The aqueous solution of the following salt will be coloured in the case of :

A

`Zn(NO_3)_2`

B

`LiNO_3`

C

`Co(NO_3)_2`

D

`CrCl_3`

Text Solution

Verified by Experts

The correct Answer is:
C, D
Compunds with unpaired `e^-` shows colours `Cu^+2=[Ar] 3d^9 ,Mn^(+2)=[Ar]3d^5`
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AAKASH SERIES-D & F BLOCK ELEMENTS-LEVEL-II (LECTURE SHEET) (EXERCISE-I)(SINGLE & ONE OR MORE THAN ONE CORRECT ANSWERS)
  1. Which of the following compounds is coloured

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  2. Which of the following compounds is expected to be coloured :

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  3. The aqueous solution of the following salt will be coloured in the cas...

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  4. A metal M and is compound can give the following observable changes in...

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  5. Each of the following ion contains vanadium the + V oxidation state ex...

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  6. Which of the following are not coloured due lo charge transfer

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  7. Oxides of which of the following melals show oxidation state of +8 ?

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  8. Select the compounds having metal in zero oxidation state

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  9. Among the following , identify the species with an atom in + 6 oxidati...

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  10. The oxidation state(s) of copper is (are)

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  11. Duraluminium an alloy contains :

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  12. Manganese steel contains

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  13. The stainless steel developed in India contains the following special ...

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  14. Which of the following is(are) alloy(s) not containing copper?

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  15. Which of the following statement(s) is (are) correct. When a mixture o...

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  16. K2MaO4 is formed when :

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  17. Which of the following is (are) correct:

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  18. Which statement (s) is (are) incorrect:

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  19. If, in an ammonical solution, salts which produce a black precipate wh...

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  20. Which of the following metals will not react with solution of CuSO4 ?

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