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D and F Block Elements question

2017 · Q96
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D and F Block Elements question

2017 · Q96

NEETChemistryD and F Block ElementsMCQ+4 / −1
HgCl2 and I2 both when dissolved in water containing I−-− ions, the pair of species formed is
  1. A
    HgI2, I−-−
  2. B
    HgI42−_4^{2 - }42−​, I3−_3^{ - }3−​
  3. C
    Hg2I2, I−-−
  4. D
    HgI2, I3−_3^{ - }3−​
View written solutionFree

Correct answer: B

HgCl2

  • 4I– (aq) →\to→ HgI42– (aq) + 2Cl–(aq)

    I2(s)
  • I– (aq) →\to→ I3–(aq)
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