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When MnO(2) is fused with KOH , a colour...

When `MnO_(2)` is fused with KOH , a coloured compound is formed . The product and its colour is :

A

`KMnO_(4)`, purple

B

`Mn_(2) O_3` , brown

C

`K_(2) MnO_(4)` , purple green

D

`Mn_(2) O_(4)` , black

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-MOCK TEST PAPER 5-QUESTION
  1. Which of the following is correct ?

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  2. The pair of species with the same bond order is

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  3. When MnO(2) is fused with KOH , a coloured compound is formed . The pr...

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  4. The reaction of chloroform with alcoholic KOH and p-toluidine forms :

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  5. A mixture contains 64 g of dioxygen and 60 g of neon at a total pressu...

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  6. DeltaH and DeltaS for a reaction are +30.558 kJ mol^(-1) and 0.066 kJ ...

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  7. [X]+H2SO4 to [Y] a colourless gas with irritating smell. [Y]+K2Cr2O7...

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  8. How many unit cells are present in a cube shaped ideal crystal of NaCl...

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  9. In the reaction , CH(3)COOHoverset(Ca(OH)(2))toAoverset("Heat")toBover...

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  10. The ozonolysis of an alkene X followed by hydrolysis gives ethanal and...

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  11. PH value of a saturated solution Ba(OH)2 is 12. Calculate solubility p...

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  12. Select the compound in which chlorine shows highest oxidation state :

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  13. In a Cannizzaro's reaction , the intermediate which is best hydride do...

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  14. Oxidation of propylbenzene in the presence of oxidsing agent like p...

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  15. Positive deviations from ideal behaviour take place because of :

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  16. The IUPAC name of the compound : (CH(3))(3)C-CH=CH(2) is

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  17. The volume strength of 1.5 NH(2)O solution is

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  18. Alkali metals have negative reduction potential and hence they behave ...

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  19. In which of the following neutralisation reaction, the heat of neutral...

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  20. In an irreversible process taking place at constant T and P and in whi...

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