which reagent gets reduced in each of the following redox reactions.

Chemistry
Tutor: None Selected Time limit: 1 Day

Cl2 + 2KI " src="http://educog.com/res/sfu/batchelo/Gallery/rarrow.gif" align="middle"> 2KCl + I2 

2HNO3 + 3H2SO3 " src="http://educog.com/res/sfu/batchelo/Gallery/rarrow.gif" align="middle"> 2NO + H2O + 3H2SO4 

 3H2SO3 + HIO3 " src="http://educog.com/res/sfu/batchelo/Gallery/rarrow.gif" align="middle"> HI + 3H2SO4 

 2As + 3Cl2" src="http://educog.com/res/sfu/batchelo/Gallery/rarrow.gif" align="middle">2AsCl3 
May 13th, 2015

answer is

2HNO3 + 3H2SO3 " src="http://educog.com/res/sfu/batchelo/Gallery/rarrow.gif" align="middle"> 2NO + H2O + 3H2SO4 

because

in reactant side

the oxidation number of N=+5

S=+4and

but product side

N=+2

then the oxidation number of N is reduced.


hope my answer is help for you,.....see you soon again.........



May 13th, 2015

in 1st reaction

oxidation number of cl is reduced 0 to -1

2nd reaction

oxidation number of N is reduced +5 to +2


3rd reaction

oxidation number of I is reduced +5 to -1

4th reaction

oxidation number of cI is reduced 0 to -1


May 13th, 2015

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