Skip to main content
Back to CO-ORDINATION COMPOUNDS

NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

1 Hard
1 of 1
Application +4 | -1
A solution containing 2.675 g of CoCl3  .6NH3\mathrm{CoC}{\mathrm{l}_3}\mathrm{\;}.6\mathrm{N}{\mathrm{H}_3} (molar mass =267.5  g  mol−1= 267.5\,\,\mathrm{ }g\,\,\mathrm{ mo}{\mathrm{l}^{ - 1}}) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of AgNO3\mathrm{AgN}{\mathrm{O}_3} to give 4.78 g of AgCl\mathrm{AgCl} (molar mass =143.5  g  mol−1= 143.5\,\,\mathrm{g}\,\,\mathrm{mo}{\mathrm{l}^{\mathrm{ - 1}}}). The formula of the complex is
(Atomic mass of Ag = 108  u\mathrm{Ag}\,\mathrm{ = }\,\mathrm{108\,\, u})
View answer and explanation
Correct option: A
[Co(NH3)6]Cl3\left[ {\mathrm{Co}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_6}} \right]\mathrm{C}{\mathrm{l}_3}
Option A ([Co(NH3)6]Cl3\left[ {\mathrm{Co}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_6}} \right]\mathrm{C}{\mathrm{l}_3}) is correct because the complex must have 3 chloride ions outside the coordination sphere to match the amount of AgCl precipitated.

More Questions from CO-ORDINATION COMPOUNDS

Practice All Chapter MCQs →
Type at least 2 characters or jump directly:
🔓

Save your learning progress

Sign in with a free account to save your practice answers and quiz results, then return to them when you revise.