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The answer to each of the following questions is a single digit integer, ranging from 0 to 9. If the correct answers to the qustion numbers A,B,C and D (say) are 4,0,9 and 2 respectively, then the correct darkening of bubbles should be as shown on the side : The oxidation number of Mn in the porduct of alkanline oxidative fusion of MnO_(2) is |
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Answer» Solution :`2MnO_(2)+ 4KOH + O_(2) RARR 2K_(2)MnO_(4) + 2H_(2)O` OX. Stateof Mn in `OVERSET(+1)(K_(2))overset(x)(M)noverset(-2)(O_(4)): 2+x-8=0` or `x= + 6` |
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