1.- Which of the following is the reducing agent of thefollowing reaction 5Fe 2+

Question

1.- Which of the following is the reducing agent of thefollowing reaction 5Fe2+(aq) + MnO-4(aq) +8H+(aq) ----------> 5Fe 3+(aq) +Mn2+(aq) + 4H2O(l) a) Fe2+     b)MnO4     c)H+    d)Mn2+    e) Fe3+ 2.- Which of these compounds is a strong electrolyte? a) NH3     b)O2    c) HF     d) C2H6O(ethanol)    e)LiOH 1.- Which of the following is the reducing agent of thefollowing reaction 5Fe2+(aq) + MnO-4(aq) +8H+(aq) ----------> 5Fe 3+(aq) +Mn2+(aq) + 4H2O(l) a) Fe2+     b)MnO4     c)H+    d)Mn2+    e) Fe3+ 2.- Which of these compounds is a strong electrolyte? a) NH3     b)O2    c) HF     d) C2H6O(ethanol)    e)LiOH 2.- Which of these compounds is a strong electrolyte? a) NH3     b)O2    c) HF     d) C2H6O(ethanol)    e)LiOH

Explanation / Answer

oxidising agent oxidises something else and it will reduces & reducing agent reduces some thing else andwill oxidises. +2               +7                                              +3                 +2      5Fe2+(aq) + MnO-4(aq) +8H+(aq) ----------> 5Fe 3+(aq) +Mn2+(aq) + 4H2O(l) In the given case Fe increase its oxidation state from+2 to +3 . So , Fe 2+ is the reducind agent. (2 LiOH is a strong electrolyte.

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