MCQ
Which of the following is correct?
  • A
    $[NiCl_4(NH_3)_2]^{-2} \to $ geometrical isomerism
  • B
    $[Pt (NH_3)_2Cl_2] \to $ Fac-mer isomerism
  • C
    $CoCl_3. 6H_2O \to $ Hydrate isomerism possible
  • $1$ and $3$ both

Answer

Correct option: D.
$1$ and $3$ both
d
$( 1)$ $\left[\mathrm{NiCl}_{4}\left(\mathrm{NH}_{3}\right)_{2}\right]$

$\left[\mathrm{Ma}_{4} \mathrm{b}_{2}\right]$ and

$(aa)$ $( aa)$   $(bb)$

$(aa)$  $(a b)$  $(a b)$

$( 3)$ $\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{3}$

$\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{Cl}\right] \mathrm{Cl}_{2} \cdot \mathrm{H}_{2} \mathrm{O}$

$\left(\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right) 4 \mathrm{Cl}_{2}\right) \mathrm{Cl} \cdot 2 \mathrm{H}_{2} \mathrm{O}$

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