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Which of the following statements is not...

Which of the following statements is not correct?

A

Copper liberates hydrogen from acids

B

In its higher oxidation stats, Mn forms stable compounds with oxygen anf fluorine

C

`Mn^(3+)` and `Co^(3+)` are reducing agents in aqueous solution

D

`Ti^(2+)` and `Cr^(2+)` are reducing agents in aqueous solution

Text Solution

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The correct Answer is:
A
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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-IV
  1. The electronic configurationo of Cu(II) is 3d^(9) whereas that of Cu(I...

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  2. Which of the following reactions are disproportionation reactions? ...

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  3. Which of the following statements is not correct?

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  4. The highest Manganese fluoride is

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  5. Which one of the following is lest stable?

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  6. Ferrates [FeO(4)]^(2-) are formed in alkaline media but they readily d...

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  7. Why is the value for (Mn^(3+))/(Mn^(2+)) couple much more positive tha...

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  8. Which one of the following catalyses the reaction between iodide and p...

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  9. Which one of the following does not exist?

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  10. For Mn^(3+)//Mn^(2+) system, the E^(0) values for some metals are as f...

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  11. which metal in the first series of transition metals exhibits +1 oxid...

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  12. Match the catalysts given in column I with the processesn given in col...

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  13. Match the properties given in Column I with the metals given in Column...

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  14. Match the statements given in Column I with the oxidation states given...

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  15. Match the solutions given in Column I and the colours given in Column ...

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  16. Metch the properties given in column I with the metals given in column...

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  17. Transition element which exhibits typical metal (complex) structure

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  18. Ferrotes are formed in alkaline medium but they readily decopose to Fe...

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  19. Which of the following ions show higher spin only magnetic moment va...

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  20. Which of the following will not act as oxidising agents?

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