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Q.

IUPAC name of CrH2O6Cl3 Complex is 

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a

HexaaquaChromium(III)chloride

b

HexaaquaChromium(III)trichloride

c

HexaaquaChromium(III)dichloride

d

HexaaquaChromium(II)chloride

answer is A.

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Detailed Solution

  • First name the ligands and then metal with oxidation number (in roman numerals).
  • The oxidation number of chromium is (+3).
  • In the given compound, water is a neutral ligand and chloride contain -1 charge.
  • Therefore, the oxidation number of chromium is (+3).
  • Assign the number of ligands in a complex with a prefix, di for 2, tri for 3, tetra for 4, and so on.
  • Name the ligands in alphabetical order.
     
  • IUPAC name of CrH2O6Cl3 Complex is HexaaquaChromium(III)chloride
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