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Coordination Compounds

JEE Main 2024 (Online) 9th April Morning ShiftMCQEasy📈 Topic in 15% papers+4−1
Ques. 1JEE Main 2024, 9 April (Morning Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

  1. (A) is correct but (R) is not correct
  2. (A) is not correct but (R) is correct
  3. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. Both (A) and (R) are correct and (R) is the correct explanation of (A)

Answer

(2) (A) is not correct but (R) is correct

Solution

In [Co(en)2Cl2]+ en is bidentate, so the C.N. is 6 and the ion is octahedral; hence (R) is correct.

An [M(AA)2B2] complex has only two geometrical isomers: cis (two Cl adjacent) and trans (two Cl opposite).

Only the cis form is optically active, so there are 3 stereoisomers in all but only 2 geometrical isomers; hence (A) is not correct.

Answer: (2)

Keep practising — Coordination Compounds

Ques. 2JEE Main 2024, 9 April (Morning Shift)

Number of ambidentate ligands among the following is . NO2-, SCN-, C2O42-, NH3, CN-, SO42-, H2O.

Ques. 3JEE Main 2024, 9 April (Evening Shift)

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

  1. A-III, B-II, C-IV, D-I
  2. A-III, B-I, C-II, D-IV
  3. A-I, B-III, C-II, D-IV
  4. A-III, B-I, C-IV, D-II
Ques. 4JEE Main 2024, 9 April (Evening Shift)

The coordination environment of Ca2+ ion in its complex with EDTA4- is :

  1. trigonal prismatic
  2. octahedral
  3. square planar
  4. tetrahedral
Ques. 5JEE Main 2024, 8 April (Morning Shift)

Number of Complexes with even number of electrons in t2g orbitals is - [Fe(H2O)6]2+, [Co(H2O)6]2+, [Co(H2O)6]3+, [Cu(H2O)6]2+, [Cr(H2O)6]2+

  1. 3
  2. 2
  3. 1
  4. 5
Ques. 6JEE Main 2024, 8 April (Morning Shift)

An octahedral complex with the formula CoCl3 nNH3 upon reaction with excess of AgNO3 solution gives 2 moles of AgCl. Consider the oxidation state of Co in the complex is 'x'. The value of "x + n" is .

  1. 6
  2. 5
  3. 3
  4. 8
Ques. 7JEE Main 2024, 8 April (Morning Shift)

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

  1. Both Statement I and Statement II are incorrect.
  2. Both Statement I and Statement II are correct.
  3. Statement I is incorrect but Statement II is correct.
  4. Statement I is correct but Statement II is incorrect.
Ques. 8JEE Main 2024, 8 April (Evening Shift)

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

  1. (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
  2. (A)-(II), (B)-(III), (C)-(I), (D)-(IV)
  3. (A)-(I), (B)-(IV), (C)-(II), (D)-(III)
  4. (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
Ques. 9JEE Main 2024, 8 April (Evening Shift)

Total number of unpaired electrons in the complex ions [Co(NH3)6]3+ and [NiCl4]2- is .

Ques. 10JEE Main 2024, 6 April (Morning Shift)

Consider the following complexes (A) [CoCl(NH3)5]2+, (B) [Co(CN)6]3-, (C) [Co(NH3)5(H2O)]3+, (D) [Cu(H2O)4]2+ The correct order of A, B, C and D in terms of wavenumber of light absorbed is :

  1. D < A < C < B
  2. B < C < A < D
  3. C < D < A < B
  4. A < C < B < D
Ques. 11JEE Main 2024, 6 April (Evening Shift)

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

  1. A-IV, B-III, C-I, D-II
  2. A-III, B-I, C-IV, D-II
  3. A-I, B-III, C-IV, D-II
  4. A-III, B-IV, C-II, D-I

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