Free NEET Chemistry multiple-choice questions on Isomerism. Attempt each question and reveal the answer with a full explanation.
How many geometrical isomers are possible for the square planar complex [Pt(NH 3) 2Cl 2] ? 2 3 4 0 The complex [Cr(H 2O) 6]Cl 3 is violet, while [Cr(H 2O) 5Cl]Cl 2 H 2O is grey-green. This is an example of: Hydrate isomerism Linkage isomerism Coordination isomerism Ionization isomerism Which of the following complexes is :- mer-[Co(NH3)3Cl3] cis-[PtCl2(NH3)2] cis-K2[PtCl2Br2] Na2CoCl4 The type of isomerism shown by the complex [CoCl2(en)2] is Ionization isomerism Coordination isomerism Geometrical isomerism Linkage isomerism The number of geometrical isomers possible for [MA 3B 3] octahedral complexes is: 2 3 4 1 How many geometric isomers are possible for an octahedral complex of type [MA 2B 4] ? 2 3 4 6 Which of the following complexes can show hydrate isomerism? CrCl 3 ∙ 6H 2O CoCl 3 ∙ 6NH 3 [Co(NH 3) 5Cl]Cl 2 [Pt(NH 3) 2Cl 2] Which statement is NOT correct for the complex [Co(en) 3]Cl 3 ? It shows geometric isomerism It is an inner orbital complex It shows optical isomerism It is diamagnetic Which of the following complexes can exhibit optical isomerism? cis-[Pt(en) 2Cl 2] 2+ trans-[Pt(en) 2Cl 2] 2+ [Zn(en)Cl 2] [Co(NH 3) 4Cl 2] + How many optical isomers are possible for the trans-isomer of [Co(en) 2Cl 2] + ? 0 2 1 3 An octahedral complex [M(en) 2Cl 2]Cl shows two isomers, X and Y. X is optically active while Y is optically inactive. X and Y are: X = cis-isomer, Y = trans-isomer X = trans-isomer, Y = cis-isomer X = fac-isomer, Y = mer-isomer X = linkage isomer, Y = ionization isomer Which of the following complexes exhibits linkage isomerism? [Co(NH 3) 5(NO 2)]Cl 2 [Co(NH 3) 6]Cl 3 [Co(NH 3) 5Cl]Cl 2 [Pt(NH 3) 2Cl 2] How many geometrical isomers are possible for the square planar complex [Pt(NH 3)(NH 2OH)(Py)(NH 2Me)] + ? 3 2 4 6 The coordination isomer of [Co(en) 3][Cr(CN) 6] is: [Cr(en) 3][Co(CN) 6] [Co(en) 2(CN) 2][Cr(en)(CN) 4] [Co(en) 3][Cr(en) 3] [Cr(CN) 6][Co(CN) 6] For a square planar complex [M(ABCD)] , how many pairs of enantiomers (optical isomers) are possible? 0 2 1 3 Total number of stereoisomers (geometrical + optical) possible for [Co(en) 2Cl 2] + is: 3 4 2 6 The number of optical isomers (enantiomeric pairs) for the complex [Co(en) 3] 3+ is: 2 1 3 0 The complex [Cr(H 2O) 4Cl 2]Cl can exhibit which of the following types of isomerism? Geometrical isomerism Linkage isomerism Coordination isomerism Optical isomerism Which one of the following is expected to exhibit optical isomerism ? (en = ethylenediamine) cis – [Pt(NH3)2Cl2] cis – [Co(en)2Cl2] trans – [Co(en)2Cl2] trans – [Pt(NH3)2Cl2] [ Co(NH3)4(NO2)2 ] Cl exhibits:- Linkage isomerism, ionization isomerism and optical isomerism Linkage isomerism, ionization isomerism and geometrical isomerism Ionization isomerism, geometrical isomerism and optical isomerism Linkage isomerism, geometrical isomerism and optical isomerism Which of the following will give a pair of enantiomorphs? [Cr(NH 3 ) 6 ][Co(CN) 6 ] [Co(en) 2 Cl 2 ]Cl [Pt(NH 3 ) 4 ][PtCl 6 ] [Co(NH 3 ) 4 Cl 2 ][NO 2 ] 2 (en=NH 2 CH 2 CH 2 NH 2 ) Which of the following does not show optical isomerism - (en = Ethylenediamine) [ Co(en) 3 ] 3+ [ Co(en) 2Cl 2 ] + [ Co(NH 3) 3Cl 3 ] 0 [ Co(en)Cl 2(NH 3) 2 ] + Which of the following shows maximum coordination isomerism? [Co(NH 3) 6][Cr(CN) 6] [Cu(NH 3) 4][PtCl 4] [Pt(NH 3) 4]Cl 2 [Co(en) 3]Cl 3 Match List I with List II. array ll List I (Complex) & List II (Type of isomerism) A. [Co(NH3)5(NO2)]Cl2 & I. Solvate isomerism B. [Co(NH3)5(SO4)]Br & II. Linkage isomerism C. [Co(NH3)6][Cr(CN)6] & III. Ionization isomerism D. [Co(H2O)6]Cl3 & IV. Coordination isomerism array Choose the correct answer from the options given below: A-II, B-III, C-IV, D-I A-I, B-III, C-IV, D-II A-I, B-IV, C-III, D-II A-II, B-IV, C-III, D-I Match List I with List II : array llll ; & List-I (Complex) & ; & List-II (Type of isomerism) A. & [Pt(NH3)2Cl2] & I. & Optical B. & [Co(en)3] 3+ & II. & Solvate C. & [Co(NH3)5NO2]Cl2 & III. & Geometrical D. & [Cr(H2O)6]Cl3 & IV. & Linkage array Choose the correct answer from the options given below : A-I, B-III, C-II, D-IV A-II, B-IV, C-III, D-I A-III, B-I, C-IV, D-II A-III, B-I, C-II, D-IV How many geometrical isomers are possible for the complex [Pt(NH 3)(NH 2OH)(Py)(Cl)] + ? 3 2 4 6 Identify the optically active isomer among the following: cis-[Co(en) 2Cl 2] + trans-[Co(en) 2Cl 2] + [Co(NH 3) 4Cl 2] + [Pt(NH 3) 2Cl 2] The total number of possible isomers for the complex [Co(en) 2Cl 2]Cl (including stereoisomers) is: 3 2 4 6 The coordination compound [Pt(NH 3) 2(SCN) 2] can exhibit: Linkage, Geometric, and Ionization isomerism Linkage and Geometric isomerism only Geometric and Optical isomerism only Coordination and Linkage isomerism only The number of geometric isomers for a complex of type [MA 2B 2C 2] (where A, B, C are monodentate) is: 5 3 4 6 How many geometrical isomers are possible for the complex [Ma 2b 2c 2] ? 5 3 4 6 In the complex [Co(en) 2Cl 2] + , the number of possible stereoisomers (geometrical + optical) is: 3 2 4 6 Given below are two statements: Statement-I : [Fe(ox)3] 3- is chiral. Statement-II : trans- [Cr(H2O)2(ox)2] - is chiral. (Given : oxH2 = HOOC-COOH ) In light of the above statements, choose the most appropriate answer from the options given below: Both Statement-I and Statement-II are correct Both Statement-I and Statement-II are incorrect Statement-I is correct but Statement-II is incorrect Statement-I is incorrect but Statement-II is correct Cis-platin, an anticancer drug, has the formula: cis-[Pt(NH 3) 2Cl 2] trans-[Pt(NH 3) 2Cl 2] [Pt(NH 3) 4]Cl 2 K 2[PtCl 4] The complex which has facial and meridional isomers is (Given : py = pyridine and en = H2N-CH2-CH2-NH2 ) [Cr(py)3(Cl)3] [Cr(H2O)6] 3+ [Co(NH3)4(H2O)2] 3+ [Ni(en)2(H2O)2] 2+ The type of isomerism shown by [Co(en) 3]Cl 3 is: Optical isomerism Geometrical isomerism Coordination isomerism Linkage isomerism The total number of geometrical isomers possible for the complex [Co(NH 3) 3(NO 2) 3] is: 2 3 4 0 Identify the coordination isomer of [Co(NH 3) 6][Cr(CN) 6] : [Cr(NH 3) 6][Co(CN) 6] [Co(NH 3) 5Cl][Cr(CN) 6] [Co(NH 3) 6][Cr(CN) 5Cl] [Cr(NH 3) 4Cl 2][Co(CN) 4] Facial (fac) and meridional (mer) isomers are a type of: Geometrical isomerism Optical isomerism Linkage isomerism Ionization isomerism How many geometrical isomers are possible for the octahedral complex [Co(NH 3) 4Cl 2] + ? 2 3 4 6