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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

A

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

B

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

C

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

D

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

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Knowledge Check

  • 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.

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

  • The complex [Pt(py)(NH_3)(NO_2)ClBr] has

    A
    10 geometrical isomers, each is optically active
    B
    10 geometrical isomers, five of them are optically active
    C
    15 geometrical isomers, each is optically active
    D
    15 geometrical isomers, each is optically inactive

  • The complex [Ni(dmg)_2] , where dmg is dimethylgloxime,

    A
    has square planar geometry and is paramagnetic in nature
    B
    has square planar geometry and is diamagnetic
    C
    has tetrahedral geomètry and is paramagnetic
    D
    has tetrahedral geometry and is diamagnetic