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Chemistry · 2024 · 3 marks
CBSE 2024 · Region 5 · Set 3 · Q24
Write the IUPAC names of the following coordination compounds (any three): (a) [ Co ( NH_3)_4 Cl ( NO_2)] Cl (b) [ Ni ( NH_3)_6] C l_2 (c) K_3[ Cr (…
Write the IUPAC names of the following coordination compounds (any three) :
(a)
$\displaystyle \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}\left(\mathrm{NO}_{2}\right)\right] \mathrm{Cl}$
(b)
$\displaystyle \left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{C} l_{2}$
(c)
$\displaystyle \mathrm{K}_{3}\left[\mathrm{Cr}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]$
(d)
$\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Br}_{2}\right]^{+}$
Marking-scheme solution
(a)
Tetraamminechloridonitrito-N-cobalt (III) chloride
(b)
Hexaamminenickel(II) chloride
(c)
Potassium trioxalatochromate (III)
(d)
Dibromidobis(ethane-$\displaystyle 1,2$-diamine)cobalt (III) ion
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CBSE Class 12 Chemistry past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.