Question

Assertion: $Co[Hg(SCN{)}_6]$ and Hg $[Co(SCN{)}_6]$ are isomers.
Reason: $SC{N}^{-}$ is a stronger ligand as compared to $NC{S}^{-}$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (C)

Co[Hg(SCN)₆] and Hg[Co(SCN)₆] are ionisation isomers. NCS^- is stronger than SCN^-.