$\left[\mathrm{Ni}\left(\mathrm{NH}_{3}ight)_{6}ight]^{2+}+\mathrm{en} \longrightarrow \mathrm{X}+2…

$\left[\mathrm{Ni}\left(\mathrm{NH}_{3}ight)_{6}ight]^{2+}+\mathrm{en} \longrightarrow \mathrm{X}+2 \mathrm{NH}_{3}$
$\left[\mathrm{Ni}\left(\mathrm{NH}_{3}ight)_{6}ight]+2 \mathrm{en} \longrightarrow \mathrm{Y}+4 \mathrm{NH}_{3}$
$\left[\mathrm{Ni}\left(\mathrm{NH}_{3}ight)_{6}+3 \mathrm{en} \longrightarrow \mathrm{Z}+6 \mathrm{NH}_{3}ight.$
Which of them show optical as well as geometrical isomerism?
  1. $\mathrm{X}$
  2. $\mathrm{Y}$
  3. $Z$
  4. All of these

Solution

$\mathrm{X}=\left[\mathrm{Ni}(\mathrm{en})\left(\mathrm{NH}_{3}ight)_{4}ight]^{2+}$ neither G.I. nor OI
$\mathrm{Y}=\left[\mathrm{Ni}(\mathrm{en})_{2}\left(\mathrm{NH}_{3}ight)_{2}ight]^{2+}$ G. I as well as $\mathrm{OI}$
$\mathrm{Z}=\left[\mathrm{Ni}(\mathrm{en})_{3}ight]^{2+}$ does not show G.I. while
show Ol ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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