MHT CET · Chemistry · Coordination Compounds
Which from following formulae is of sodium hexanitrocobaltate(III)?
- A \(\mathrm{Na}_2\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]\)
- B \(\mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]\)
- C \(\left[\mathrm{Co}\left(\mathrm{NaNO}_2\right)_6\right]\)
- D \(\mathrm{Na}_3\left[\mathrm{Co}(\mathrm{ONO})_6\right]\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]\)
Step-by-step Solution
Detailed explanation
The oxidation state of metal ion is +3 . Hence, Sodium hexanitrocobaltate \((\mathrm{III}): \mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]\)
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