Assertion : is named as tetrakis (ethylene- diammine) mu-"hydroxo"-mu-"imido dicobalt (III) ion". Reason : In naming polynuclear complexes i.e., containing two or more metal atoms joined by bridging ligands, the word mu is added with hyphen before the nane of such ligands.

Assertion : is named as tetrakis (ethylene- diammine) mu-"hydroxo"-mu

1.	Assertion : is named as tetrakis (ethylene- diammine) mu-"hydroxo"-mu-"imido dicobalt (III) ion". Reason : In naming polynuclear complexes i.e., containing two or more metal atoms joined by bridging ligands, the word mu is added with hyphen before the nane of such ligands.
Answer» If both ASSERTION and reason are true and reason is the correct explanation of assertion If both assertion and reason are true but reason is not the correct explanation of assertion If assertion is true but reason is false If both assertion and reason are false. Solution : is named as tetrakis (ethylenediammine)-`mu`-hydroxo-`mu`-imido dicobalt (III) ion. For more than one bridging group the WORD u is repeated before cach bridging group.