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Which oxide of manganese is acidic in na...

Which oxide of manganese is acidic in nature

A

MnO

B

`Mn_(2)O_(7)`

C

`Mn_(2)O_(3)`

D

`MnO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Transition metl oxide with highest oxidation states is most acidic in character because of the very less difference in the values of electronegativity between `Mn^(7+) and O^(2-)`, and the decreasing order of acidic character is `overset(+7)(Mn_(2))O_(7) gt overset(+4)(Mn)O_(2) gt overset(+3)(Mn_(2))O_(3) gt overset(+2)(Mn)O`.
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Additional Problems for Self practice (APSP)
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  10. Fe is made passive by :

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  11. Which one of the following dissolves in hot concentrated NaOH?

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  14. At 300 C FeCl(3):

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  15. When FeSO(4) is strongly heated, the number of acidic gases produced i...

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  16. On heating ZnCl(2).2H(2)O, the compounds obtained is:

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  17. On heating KMnO(4), one among the following is not formed:

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  18. Reaction of KMnO(4) in neutral or very weakly alkaline solution can be...

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  19. KMnO(4) in excess on treatment with concentrated H(2)SO(4) forms a com...

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  20. Which of the following statement is wrong?

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