JEE Questions for Chemistry The D And F Block Elements Quiz 12 - MCQExams.com

In the standardization of Na2S2O3 using K2Cr2O7 by iodometry, the equivalent weight of K2Cr2O7 is
  • (Molecular weight )/2
  • (Molecular weight ) /6
  • (Molecular weight )/3
  • Same as molecular weight

Chemistry-The d and f Block Elements-8515.png
  • 3, 5, 4 and 1
  • 4, 3, 1 and 5
  • 1, 3, 4 and 5
  • 5, 4, 3 and 1
In alkaline condition, KMnO4 reacts as
2KMnO4 + 2KOH → 2K2MNO4 + H2 + O
The equivalent weight of KMnO4 would be(At. mass of K=39, Mn=55, O=16)
  • 158.0
  • 79.0
  • 52.7
  • 31.6
The strength as oxidising agents of the following species in acidic solution decreases in the order

  • Chemistry-The d and f Block Elements-8518.png
  • 2)
    Chemistry-The d and f Block Elements-8519.png

  • Chemistry-The d and f Block Elements-8520.png

  • Chemistry-The d and f Block Elements-8521.png
0:0:1


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