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Coordination Compounds question

2023 · Q121
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Coordination Compounds question

2023 · Q121

NEETChemistryCoordination CompoundsMCQ+4 / −1

Which complex compound is most stable?

  1. A
    [Co(NH3)3(NO3)3]\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right][Co(NH3​)3​(NO3​)3​]
  2. B
    [CoCl2(en)2]NO3\left[\mathrm{CoCl}_{2}(\mathrm{en})_{2}\right] \mathrm{NO}_{3}[CoCl2​(en)2​]NO3​
  3. C
    [Co(NH3)6]2(SO4)3\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}[Co(NH3​)6​]2​(SO4​)3​
  4. D
    [Co(NH3)4(H2O)Br](NO3)2\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}[Co(NH3​)4​(H2​O)Br](NO3​)2​
View written solutionFree

Correct answer: B

due to Chelation effect of (en).

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