Q2 / 54 · JEE Advanced 2016 (Paper 2) · Chemistry

The geometries of the ammonia complexes of $N i^{2 +}, P t^{2 +} a n d Z n^{2 +}$ respectively, are :

Correct answer
A
Octahedral, square planar and tetrahedral
B
square planar, octahedral and tetrahedral
C
tetrahedral, square planar and octahedral
D
octahedral , tetrahedral and square planar

Solution

Metal ion	Complex with $N H_{3}$	Geometry
$N i^{2 +}$	${[N i {(N H_{3})}_{6}]}^{2 +}$	Octahedral
$P t^{2 +}$	${[P t {(N H_{3})}_{4}]}^{2 +}$	Square planar
$Z n^{2 +}$	${[Z n {(N H_{3})}_{4}]}^{2 +}$	Tetrahedral

So, option octahedral, square planar and tetrahedral order is correct.

Hence, the correct answer is option: 'A'.

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