Assertion : The complex ion [Ni(en)(3)]^...

Assertion : The complex ion `[Ni(en)_(3)]^(2+)` has lesser stability than `[Ni(NH_(3))_(6)]^(2+)`
Reason : `ln [Ni(en)_(3)]^(2+)`, the geometry is square bipyramidal

Mark (I) if both assertion (A) and reason (R )are correct and (R )is the correct explanation of (A)

Mark (II) if both assertion (A) and reason (R )are correct and (R )is not the correct explanation of (A)

Mark (III) if (A) is correct but (R ) is incorrect

Mark (IV) if (A) is incorrect but (R ) is correct

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Assertion . : The [Ni(en)_3]Cl_3 has lower stability than [Ni(NH_3)_6]Cl . Reason : In [Ni(en)_3]Cl_2 the geometryis trigonal bipyramidal.

If both (A) and (R) are correct and (R) is the correct explanation of (A).

If both (A) and (R) are correct, but (R) is not the correct explanation of (A).

If (A) is correct, but(R) is incorrect.

If both (A) and (R) are.incorrect.

10 geometrical isomers, each is optically active

10 geometrical isomers, five of them are optically active

15 geometrical isomers, each is optically active

15 geometrical isomers, each is optically inactive

has square planar geometry and is paramagnetic in nature

has square planar geometry and is diamagnetic

has tetrahedral geomètry and is paramagnetic

has tetrahedral geometry and is diamagnetic