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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
When acidified K2Cr2O7 solution is added to Sn2+ salts then Sn2+ changes to
  • A
    Sn
  • B
    Sn3+
  • C
    Sn4+
  • D
    Sn+
✓

Answer

  1. Sn4+

Explanation:

Thus, Acidified potassium dichromate will oxidize tin(II) to tin(IV)

$\text{Cr}_2\text{O}_7^{2-}+14\text{H}^++3\text{Sn}^{2+}\rightarrow2\text{Cr}^{3+}+3\text{Sn}^{4+}+7\text{H}_2\text{O}$

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