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Reduction of the metal centre in aqueous...

Reduction of the metal centre in aqueous permanganate ion involves

A

3 electrons in neutral medium

B

5 electrons in neutral medium

C

3 electrons in alkaline medium

D

5 electrons in acidic medium

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The correct Answer is:
A, C, D
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 3
  1. Among the following , the coloured compound is

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  2. Find the oxidation number of Mn in the product of alkaline oxidative f...

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  3. Reduction of the metal centre in aqueous permanganate ion involves

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  4. The colour of light absorbed by an aqueous solution of CuSO(4) is

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  5. Which of the following halides react(s) with AgNO(3(aq)) to give a pre...

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  6. Consider the following list of reagent "Acidified" K(2)Cr(2)O(7), "a...

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  7. Which of the following statement are correct about Cr^(2+) (Z = 24) an...

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  8. Fe^(3+) is reduced to Fe^(3+) by sing

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  9. In the following sequence in aqueous solution, the species X, Y and Z,...

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  10. Which of the following combination will produce H(2) gas ?

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  11. Number of electrons transferred in each case when KMnO(4) acts as an o...

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  12. which of the following ions has the maximum magnetic moment ?

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  13. The most common oxidation states of cerium are

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  14. What happen when a solution of potassium chromate is treated with an e...

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  15. Which one of the following nitrates will leaves behind a metal on stro...

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  16. The atomic number of V,Cr, Mn and Fe are respectively 23,24,25 and 26....

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  17. Which of the following group of transition metals is called coinage me...

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  18. The number of d-electrons retained in Fe^(2+) (At. No. Fe=26) ions are...

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  19. Ammonia forms the complex [Cu(NH3)4]^(2+) with copper ions in alkaline...

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  20. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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