NEET · Chemistry · STD 12 - 5. Co-ordination chemistry

Match List \(I\) with List \(II\).

List I (Complex) List \(II\) (Type of isomerism)

\(A\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2\) \(I\). Solvate isomerism

\(B\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}\) \(II\). Linkage isomerism

\(C\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]\) \(III\). Ionization isomerism

\(D\). \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3\) \(IV\). Coordination isomerism

Choose the correct answer from the options given below:

A \(A-I, B-III, C-IV, D-II\)
B \(A-I, B-IV, C-III, D-II\)
C \(A-II, B-IV, C-III, D-I\)
D \( A-II, B-III, C-IV, D-I\)

Verified Solution

Answer & Solution

Correct Answer

(D) \( A-II, B-III, C-IV, D-I\)

Step-by-step Solution

Detailed explanation

\(A\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right) 5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2\)	\(II\). Linkage isomerism due to ' \(N\) ' and ' \(\mathrm{O}\) ' linkage by \(\mathrm{NO}_2\)
\(B\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}\)	\(III\). Ionization isomerism
\(C\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]\)	\(IV\). Coordination isomerism
\(D\). \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3\)	\(I\). Solvate isomerism

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Match the plant with the kind of life cycle it exhibits:

List-I	List - II
\((a)\) Spirogyra	\((i)\) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
\((b)\) Fern	\((ii)\) Dominant haploid free-living gametophyte
\((c)\) Funaria	\((iii)\) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
\((d)\) Cycas	\((iv)\) Dominant haploid leafy gametophyte alternating with partially dependent

Choose the correct answer from the options given below:

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List \(I\) (Types of Stamens)	List \(II\) (Example)
\(A\). Monoadelphous	\(I\). Citrus
\(B\). Diadelphous	\(II\). Pea
\(C\). Polyadelphous	\(III\). Lily
\(D\). Epiphyllous	\(IV\). China-rose

List I (Complex)	List \(II\) (Type of isomerism)
\(A\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2\)	\(I\). Solvate isomerism
\(B\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}\)	\(II\). Linkage isomerism
\(C\). \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]\)	\(III\). Ionization isomerism
\(D\). \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3\)	\(IV\). Coordination isomerism