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MHT-CET PCB 02 — MHT - CET STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMHT - CETMHT-CET PCB 021 Mark
MCQ
The formula of sodium hexanitrocobaltate (III) is, ____________.
  • A
    $\mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_4\right]$
  • ✓
    $\mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]$
  • C
    $\mathrm{Na}\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]$
  • D
    $\mathrm{Na}_3\left[\mathrm{Co}(\mathrm{ONO})_6\right]$
✓

Answer

Correct option: B.
$\mathrm{Na}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]$
B

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