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Question

IUPAC name of the Wilkinson's catalyst[RhCl(PPh3)3]

A
chlorotris(triphenylphosphine)rhodium(I)
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B
chlorotris(triphenylphosphine)rhodium(IV)
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C
chlorotrism(triphenylphosphine)rhodium(0)
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D
chlorotris(triphenylphosphine)rhodium(VI)
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Solution

The correct option is A chlorotris(triphenylphosphine)rhodium(I)
The IUPAC name of the Wilkinson's catalyst [RhCl(PPh3)3] is chlorotris(triphenylphosphine)rhodium(I) because the oxidation state of Rh metal in the complex is +1.
x+(1×1)+0=0
x=+1.
Ligands are named first in alphabetical order, irrespective of its charge, hence ''chloro'' will be written prior to "triphenylphosphine''.
Hence, the correct option is (a).

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