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1 mole of K2Cr2O7 cannot oxidise

Option 1 -

3.6 moles of FeSO₄ to Fe₂(SO₄)₃


Option 2 -

1 mole of FeSO₄ to Fe₂(SO₄)₃

Option 3 -

1.8 moles of Sn²⁺ to Sn⁴⁺

Option 4 -

4 moles of Sn²⁺ to Sn⁴⁺

0 2 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    a month ago
    Correct Option - 4


    Detailed Solution:

    Meq of K? Cr? O? is greater than all the other given species.

Similar Questions for you

20mL of 0.02 M hypo solution is used for the titration of 10mL of copper sulphate solution, in the presence of excess of KI using starch as an indicator. The molarity of Cu2+ is found to be__________× 10-2 M. [nearest integer]

Given: 2Cu2+ + 4I- ® Cu2I2 + I2

 I2 +   2 S 2 O 3 2 − → 2 I − + S 4 O 6 2 −

A
alok kumar singh

meq  of  l2=meq  of  Na2S2O3=20×0.002×1

2 × mmol of l2 = 0.4

mmol of l2 = 0.2 mmol

mmol of Cu2+ = 0.2 × 2 × 10-3

[ C u 2 + ] = 0 . 4 × 1 0 − 3 1 0 × 1 0 − 3 = 0 . 0 4 = 4 × 1 0 − 2 M

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