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When When '(MnO)(2)', s fused with '(KO...

When When '(MnO)_(2)', s fused with '(KOH)', a coloured compound is formed. The product and its colour is

A

(K)_(2) (Mn) (O)_(4) . purple green )

B

(KM)_(n) (O)_(4)^(a) purple )

C

(Mn)_(2) (O)_(3), brown )

D

(Mn)_(2) (O)_(4) black )

Text Solution

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The correct Answer is:
A
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V PUBLICATION-THE d- AND f- BLOCK ELEMENTS-QUESTION BANK
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  2. Least paramagnetic property is shown by

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  3. When When '(MnO)(2)', s fused with '(KOH)', a coloured compound is fo...

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  7. In nitroprusside ion,.iron and NO exist as Fe (II) and NO^(+) rather t...

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  8. One mole of acidified '(K)(2) (Cr)(2) (O)(7)' on reaction with excess ...

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  9. Of the following, which has the highest magnetic moment

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  10. For decolorisation of 1 mole' of 'KMnO4 the moles of 'H2O2' required ...

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  11. Which one of the following metal ions is colourless?

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  12. Copper can be extracted from

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  13. The value of 'spin only' magnetic moment for one of the following conf...

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  14. The highest magnetic moment is shown by the transition' metal with the...

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  15. A certain metal will liberate hydrogen from dilute acids. It will reac...

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  16. For successive members of the first row transition elements are listed...

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  17. Which of the following properties would you.not expect copper (Cu) to ...

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  18. Verdigris is

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  19. When amıonia is added ro a cupric'salt solution the deep blue colour s...

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  20. . In solid.CuSO4. 5 H2O còpper is coordinated to

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