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Kind of structural isomerism shown (linkage, coordination, solvate)

This type of question, asked 3 times: 2021 Paper 8, 1 Feb 2023, 2 Apr 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    2021 Paper 8

    37
    Match List-I with List-II: LIST-I LIST-II (A) [Co(NH3)6][Cr(CN)6]\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack\left\lbrack Cr(CN)_{6} \right\rbrack (i) Linkage isomerism (B) [Co(NH3)3(NO2)3]\left\lbrack Co\left( {NH}_{3} \right)_{3}\left( {NO}_{2} \right)_{3} \right\rbrack (ii) Solvate isomerism (C) [Cr(H2O)6]Cl3\left\lbrack Cr\left( H_{2}O \right)_{6} \right\rbrack{Cl}_{3} (iii) Co-ordination isomerism (D) cis−[CrCl2(ox)2]3−cis - \left\lbrack {CrCl}_{2}(ox)_{2} \right\rbrack^{3 -} (iv) Optical isomerism Choose the correct answer from the options given below :

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  2. Question 2

    1 Feb 2023

    129
    The complex cation which has two isomers is :

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  3. Question 3

    2 Apr 2026 S2

    36
    Which of the following complexes will show coordination isomerism? (A) [Ag(NH3)2][Ag(CN)2]\left\lbrack Ag\left( {NH}_{3} \right)_{2} \right\rbrack\left\lbrack Ag(CN)_{2} \right\rbrack (B) [Co(NH3)6][Cr(CN)6]\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack\left\lbrack Cr(CN)_{6} \right\rbrack (C) [Co(NH3)6][Co(CN)6]\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack\left\lbrack Co(CN)_{6} \right\rbrack (D) [Fe(NH3)6][Co(CN)6]\left\lbrack Fe\left( {NH}_{3} \right)_{6} \right\rbrack\left\lbrack Co(CN)_{6} \right\rbrack (E) [Co(NH3)6][Fe(CN)6]\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack\left\lbrack Fe(CN)_{6} \right\rbrack Choose the correct answer from the options given below :

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