mmend98
  • mmend98
Consider the following unbalanced redox reaction: MnO4 � (aq) plus Sb H2 (aq) yields Mn O2 (s) plus Sb (s) What is being reduced?
Chemistry
jamiebookeater
  • jamiebookeater
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mmend98
  • mmend98
is it Mn04
mmend98
  • mmend98
MnO4- SbH3 MnO2 Sb these are the options btw
shreehari499
  • shreehari499
First try balancing the equation

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mmend98
  • mmend98
ok i did what was ur final answer im so confused that i need more guidance
shreehari499
  • shreehari499
just wait
shreehari499
  • shreehari499
a sec
mmend98
  • mmend98
ok
shreehari499
  • shreehari499
We'll delete one option first i.e SbH3
mmend98
  • mmend98
yes that is clear . wouldnt that be the oxidizing agent
shreehari499
  • shreehari499
But there is no SbH3 there in the qn right?
mmend98
  • mmend98
sorry i meant SB
mmend98
  • mmend98
what is the oxidizing agent in this equation
shreehari499
  • shreehari499
reducing agent is substance which get oxidized itself by giving electron
mmend98
  • mmend98
so Mn02 is the answer
mmend98
  • mmend98
right ?
shreehari499
  • shreehari499
I think so can you wait for sometime i'll check back to you after referring to some books thanks
mmend98
  • mmend98
ok
shreehari499
  • shreehari499
ok so this is simple. Keep this in mind Reduction means there will be a decrease in the product from the reactant Oxidation means there will be an increase in the product
shreehari499
  • shreehari499
So as far as the qustion is concerned, Mno4 gets reduced to MNO2 and Sbh2 to Sb. So both Sb and O2 get reduced. Since the options given to you do not have O2, go for Sb
mmend98
  • mmend98
and that makes the oxidizing agent to be mn04-
mmend98
  • mmend98
?
shreehari499
  • shreehari499
vice versa of agents Oxidising agent Decreases and Reducing agent increases
shreehari499
  • shreehari499
so its MnO4
shreehari499
  • shreehari499
Have you understood? i think you are confused
shreehari499
  • shreehari499
OK I'll explain the entire thing with another example.
shreehari499
  • shreehari499
You need not learn any definition byheart, just understand these simple procedures that i tell you
shreehari499
  • shreehari499
So i said Oxidising agent means there will be a decrease in the product Reducing agent means there will be an increase in the product
shreehari499
  • shreehari499
|dw:1439271818138:dw|
shreehari499
  • shreehari499
check this example out. This equation is self balanced so you need not worry about balancing it
shreehari499
  • shreehari499
So try using my method and find out the Oxidising agent and Reducing agent
shreehari499
  • shreehari499
you there? @mmend98
mmend98
  • mmend98
Yes i got that shiiiii

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