Indian Institute of Technology Mumbai (IIT-M) 2006 Entrance Exams IIT Entrance Exams IIT Chemistry - Question Paper

Strength of H2O2



(1) 2.8volume (2) 5.6volume



(3) 0.5volume (4) 0.25volume





39 four Mol of a mixture of Mohr salt and Fe2(S)3

needed 400ml of 0.5 M KMO4 for complete

Oxidation in acidic medium the % of Mohr’s

Salt in the mixture is



(1) 40% (2) 5%



(3) 50% (4) 25%





40 equal quantity pf one M every of KMNo4 and

K2Cr2O7 are used to Oxidise Fe(II) solution In

Acidic medium The amount of Fe oxidised will be



(1) More with KMnO4 (2) More with K2C2O7



(3) Equal with both (4) Cannot be determined





Objective kind ques. (More Than 1 choice Is Correct)



1 when Na2S2O3 is reacted with I2 to form Na2S4O6

And Nal then which statement is correct?



(1) n-factor for Na2S2O3 is 1

(2) n-factor for I2 is 2

(3) 2moles of Na2S2O3is reacted with 1 mole of I2

(4) n-factor for Na2S4O6





2 consider the reaction



aFeS2 + bO2-------> cFe2O3 + dSO2



(1) n-factor for FeS2 is 11

(2) The ratio of moles of a:b is 4:11

(3) The ratio of moles of a : b is 11 :4

(4) the ratio of moles of c : d is 1: 4



3 for the subsequent balanced redox reaction

2MnO-4 + 8H+ Br2 -------> 2Mn2+ + 2BrO-3 + 2H2O If

The molecular weight of MnO-4 and Br2 are x&y

Respectively then

(1) Equivalent weight of MnO-4 is x/5

(2) Equivalent weight of Br2 is Y/5

Earning:   Approval pending.