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Coordination Compounds question

2018 · Shift 1 · Q1

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PYQ Library
JEE Advanced
Chemistry
Coordination Compounds
2018 · Shift 1 · Q1

Coordination Compounds question

2018 · Shift 1 · Q1

JEE AdvancedChemistryCoordination CompoundsMultiple correct+4 / −1

The correct statement(s) regarding the binary transition metal carbonyl compounds is(are) (Atomic numbers :

Fe = 26,Ni = 28

)

A
Total number of valence shell electrons at metal center in $Fe{\left( {CO} \right)_5}\,\,$ or $Ni{\left( {CO} \right)_4}$ is $16$
B
These are predominantly low spin in nature
C
Metal-carbon bond strengthens when the oxidation state of the metal is lowered.
D
The carbonyl $C-O$ bond weakens when the oxidation state of the metal is increased

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