Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 3

HARD

12th Maharashtra Board

IMPORTANT

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What are the high-spin and low-spin complexes?

Important Questions on Coordination Compounds

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 3

{[{CoCl}_{4}]}^{2 -}

is a tetrahedral complex. Draw its box orbital diagram. State which orbitals participate in hybridisation.

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 3

What are strong field and weak field ligands? Give an example of each type.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 3

With the help of crystal field energy level diagram, explain why the complex

{[Cr ({en}_{3})]}^{3 +}

is coloured?

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 4

Give valence bond description for the bonding in the complex

{[{VCl}_{4}]}^{-}

. Draw box diagrams for free metal ion. Which hybrid orbitals are used by the metal ion? State the number of unpaired electrons.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 4

Draw qualitatively energy level diagram showing

d

-orbital splitting in the octahedral environment. Predict the number of unpaired electrons in the complex

{[Fe {(CN)}_{6}]}^{4 -}

. Is the complex diamagnetic or paramagnetic? Is it coloured? Explain.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 4

Draw cis-trans isomers of the following complex:

$[Pt {({NH}_{3})}_{2} {ClNO}_{2}]$

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 4

Draw cis-trans isomers of the following complex:

$[Ru {({NH}_{3})}_{4} {Cl}_{2}]$

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 9 - Coordination Compounds>Exercises>Q 4

Draw cis-trans isomers of the following complex:

${[Cr {(en)}_{2} {Br}_{2}]}^{+}$