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Since picture can't be uploaded
Ni(II) forms a sq. planr complex and there r two pairof monodentate ligend NH3and Br
(these r geometrical isomers they are not optically isomers since they are supreimposable on there mirror image)

  Br                NH3
  NH3            Br

Br                          Br
NH3                      NH3

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ye it was not uploading there is a error but only in this question
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