NEET
Practice Test 6
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In Fe2(CO)9, the two iron atoms are

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Which of the following organometallic compound is σ and π bonded?

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    [Co(CO)5NH3]2+. In this complex Co-atom attached with NH3 through σ bonding and with CO with dative π-bond.

Which of the following may be considered to be an organometallic compound?

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    Organometallic compounds are those compounds in which a metal is bonded directly to a carbon atom of a molecule. In chlorophyll there is bond in volving metal Mg

A square planar complex is formed by hybridisation of which atomic orbitals?

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    A square planar complex is formed by hybridisation of s, px, p y and dx2-y2 atomic orbitals.

Which one of the following complexes is an outer orbital complex ?

(Atomic nos. : Mn = 25; Fe = 26; Co =27, Ni = 28)

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A complex [CoL6]n+ where L is neutral ligand has a magnetic moment μ = 4.5B. M. Hence,

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Which complex of Co2+ will have the weakest crystal field splitting –

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    Cl- is a weak field ligand.

The compound which is not coloured is

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    In Na2[CdCl4], Cd has oxidation state +2.

    So, its electronic configuration is 4d105s0 or all the 4d orbitals are fully filled.

    Hence, there will be no d-d transition. So, it is colourless.

Which has maximum paramagnetic nature ?

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How many pairs of enantiomers are possible for following complex compound, [M (AB) (CD) ef]n±(where AB, CD– Unsymmetrical bidentate ligand, e,f–Monodentate ligands)

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