NEET Coordination Compounds — Set 8

Question 1

Which pair exhibits linkage isomerism?

Accepted Answer

$ \ce{[Cr(H2O)5CN]^2+} $ and $ \ce{[Cr(H2O)5NC]^2+} $ differ by the binding atom of the ambidentate $ \ce{CN^-} $ ligand (C vs. N).

Question 2

Which ligand is ambidentate?

Accepted Answer

An ambidentate ligand can bind through two different atoms. $ \ce{SCN^-} $ can coordinate via S or N, making it ambidentate, unlike $ \ce{Cl^-} $ or $ \ce{NH3} $ (unidentate).

Question 3

Which complex can exhibit optical isomerism?

Accepted Answer

$ \ce{[Cr(en)2(H2O)2]^3+} $ (octahedral) with 2 bidentate en and 2 $ \ce{H2O} $ can form a cis isomer that is chiral, lacking symmetry.

NEET Chemistry: Coordination Compounds — Practice Set 8

Q1. Which pair exhibits linkage isomerism?

Q2. Which ligand is ambidentate?

Q3. Which complex can exhibit optical isomerism?

Q4. Which complex has a metal ion with an oxidation state equal to the number of unidentate ligands?

Q5. Which ligand in \( \ce{[Co(NH3)5SCN]^2+} \) can lead to linkage isomerism?

Q6. The hybridization of chromium in \( \ce{[Cr(H2O)6]^3+} \) is:

Q7. What type of isomerism is shown by \( \ce{[Co(NH3)5SO4]Br} \) and \( \ce{[Co(NH3)5Br]SO4} \)?

Q8. What is the hybridization of Fe in \( \ce{[Fe(CN)6]^3-} \)?

Q9. Which complex shows geometrical isomerism?

Q10. What hybridization does the metal adopt in \( \ce{[Fe(CO)5]} \)?