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Coordination Compounds · Question 5

RE-NEET (UG) 2026MCQEasy📈 Topic in 12% papers+4−1
1

The complex which has facial and meridional isomers is (Given : py = pyridine and en = H2N-CH2-CH2-NH2)

  1. [Ni(en)2(H2O)2]2+
  2. [Cr(py)3(Cl)3]
  3. [Cr(H2O)6]3+
  4. [Co(NH3)4(H2O)2]3+

Answer

(2) [Cr(py)3(Cl)3]

Solution

Facial (fac) and meridional (mer) geometric isomerism is shown by octahedral coordination complexes of the type [Ma3b3].

Among the given options, [Cr(py)3Cl3] is of the [Ma3b3] type and exhibits fac- and mer-isomerism.

Answer: (2)

RE-NEET (UG) 2026

Keep practising — Coordination Compounds

2

A 1 : 3 electrolyte in an aqueous solution is

  1. [Co(NH3)3(NO2)3]
  2. [CoCl2(NH3)4]Cl
  3. [CoCl(NH3)5]Cl2
  4. [Co(NH3)6]Cl3
RE-NEET (UG) 2026
3

According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is

  1. Cl- > NH3 > H2O > CO
  2. CO > NH3 > H2O > Cl-
  3. CO > H2O > NH3 > Cl-
  4. Cl- > H2O > NH3 > CO
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4

Among the species given below, the spin-only magnetic moment is highest for (Given: Atomic number of Ti = 22, Mn = 25, Fe = 26 and Co = 27)

  1. [Ti(H2O)6]3+
  2. [Mn(CN)6]3-
  3. [Fe(CN)6]3-
  4. [Co(NH3)6]3+
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5

Out of the following complex compounds, which of the compound will be having the minimum conductance solution?

  1. [Co(NH3)6]Cl3
  2. [Co(NH3)5Cl]Cl
  3. [Co(NH3)3Cl3]
  4. [Co(NH3)4Cl2]
NEET (UG) 2025
6

Which of the following are paramagnetic? Choose the correct answer from the options given below :

  1. A and D only
  2. A, D and E only
  3. A and C only
  4. B and E only
NEET (UG) 2025
7

The correct order of the wavelength of light absorbed by the following complexes is, A. [Co(NH3)6]3+ B. [Co(CN)6]3- C. [Cu(H2O)4]2+ D. [Ti(H2O)6]3+ Choose the correct answer from the options given below:

  1. C < D < A < B
  2. C < A < D < B
  3. B < D < A < C
  4. B < A < D < C
NEET (UG) 2025
8

Match List I with List II. Choose the correct answer from the options given below:

  1. A-II, B-III, C-IV, D-I
  2. A-I, B-III, C-IV, D-II
  3. A-I, B-IV, C-III, D-II
  4. A-II, B-IV, C-III, D-I
NEET (UG) 2024
9

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
NEET (UG) 2024
10

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below.

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
NEET (UG) 2024
11

Ethylene diaminetetraacetate ion is a/an:

  1. hexadentate ligand
  2. ambidentate ligand
  3. monodentate ligand
  4. bidentate ligand
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