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Q.
The complex $ {{[Co{{(N{{H}_{3}})}_{5}}(N{{O}_{2}})]}^{2+}} $ and $ {{[Co{{(N{{H}_{3}})}_{5}}(ONO)]}^{2+}} $ are called
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Solution:
The ligand $ N{{O}_{2}} $ is ambidentate ligand, it may attaches to the central metal ion of a complex through N as well as through O atoms. Hence these compounds show linkage isomerism.