CBSE 2025 · Region 2 · Set 1 · Q20 · 2 marks
Name the following coordination compounds according to IUPAC norms: $\displaystyle 2 \times 1$(a)$\displaystyle \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{C} l\right] \mathrm{C} l_{2}$(b)$\displaystyle \left[\mathrm{CrCl}_{2}(\mathrm{en})_{2}\right] \mathrm{C} l$
Name the following coordination compounds according to IUPAC norms: $\displaystyle 2 \times 1$
(a)
$\displaystyle \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{C} l\right] \mathrm{C} l_{2}$
(b)
$\displaystyle \left[\mathrm{CrCl}_{2}(\mathrm{en})_{2}\right] \mathrm{C} l$
Marking-scheme solution
(a)
Tetraammineaquachloridocobalt(III) chloride
(b)
Dichloridobis(ethane-$\displaystyle 1,2$-diamine)chromium(III) chloride
Coordination CompoundsNomenclature of Coordination CompoundsRemembervery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.