VOLUMETRIC BIGGIE : JEE '96

ANS : % Fe3O4 = 34.8; % Fe2O3 = 49.33

6 Answers

1
ANKIT MAHATO ·

wats up !! dont come up with such sums i'll behead u [251]

1
ANKIT MAHATO ·

its not BIGGIE .. its baap !!

21
tapanmast Vora ·

no one interested [2]

1
skygirl ·

arey this is a nice question... but needda go........

wil come and post :)

1357
Manish Shankar ·

meq of iodine=11*5*0.5=27.5
meq of KMnO4=12.8*0.25*5*2=32

FeO.Fe2O3+Fe2O3→Fe2+→Fe3+

let the meq of FeO be x; Fe2O3(from Fe3O4) be y and Fe2O3 be z
x+y+z=32
y+z=27.5
so x=4.5
y=meq of Fe2O3(from Fe3O4)=4.5*2=9
meq of Fe2O3=27.5-9=18.5
% Fe2O3=(18.5*160/2)*100/(3*1000)=49.33%
%Fe3O4=(4.5*232)*100/(3*1000)=34.8%

21
tapanmast Vora ·

kya Sir maine to socha tha its a BIGGIE, aapne to isko mar mar ke [48] SMALLIE bana diya

THANK U!!!!! [1]

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