MHT CET · Chemistry · Coordination Compounds

Which among the following is a neutral complex?

A $[F e {(H_{2} O)}_{6}] C l_{3}$
B $[N i {(N H_{3})}_{6}] C l_{2}$
C $[P t {(N H_{3})}_{2} C l_{2}]$
D $K [A g {(C N)}_{2}]$

Verified Solution

Answer & Solution

Correct Answer

(C) $[P t {(N H_{3})}_{2} C l_{2}]$

Step-by-step Solution

Detailed explanation

A neutral complex is a complex ion which have no charge on it. Among the given options

[P t {(N H_{3})}_{2} C l_{2}]

is a neutral complex. The type of complexes in other options are as follows:

(A)

[F e {(H_{2} O)}_{8}] C l_{3}

- cationic complexes

(B)

[N i {(N H_{3})}_{6}] C l_{6}

– cationic complexes

(C)

[N i {(N H_{3})}_{6}] C l_{6}

– cationic complexes

(D)

K [A g (C N_{2})] -

anionic complexes

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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