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Test: Structural and stereoisomerism in Coordination Complexes - Chemistry MCQ


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15 Questions MCQ Test Inorganic Chemistry - Test: Structural and stereoisomerism in Coordination Complexes

Test: Structural and stereoisomerism in Coordination Complexes for Chemistry 2024 is part of Inorganic Chemistry preparation. The Test: Structural and stereoisomerism in Coordination Complexes questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Structural and stereoisomerism in Coordination Complexes MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Structural and stereoisomerism in Coordination Complexes below.
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Test: Structural and stereoisomerism in Coordination Complexes - Question 1

The optical isomer that rotates the plane of polarised in the clockwise direction is called ______

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 1

The optical isomers are of two types based on the direction they rotate the plane of polarised light in a polarimeter. If it rotates it to the right, it is called dextro and if it rotates it to the left, it is called laevo.

Test: Structural and stereoisomerism in Coordination Complexes - Question 2

Which of the following compounds has a meridional isomer?

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 2

Fac-mer isomerism is only exhibited in octahedral coordination entities of the type [MA3B3] depending on the positions of the similar ligands.

Test: Structural and stereoisomerism in Coordination Complexes - Question 3

Which of the following do not show geometrical isomerism? (Assume all ligands are unidentate)

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 3

In square planar complexes, the type [MXL3] does not have any isomers as there is no pair of ligands that can be arranged adjacent to or opposite each other to form cis or trans forms respectively. All possible combinations result in the same spatial arrangement.

Test: Structural and stereoisomerism in Coordination Complexes - Question 4

How many geometrical isomers are possible in a complex of type [MA2(D)2], where A is unidentate and D is didentate?

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 4

In a complex of such type, the two A ligands can be arranged either adjacent to or opposite each other to form cis and trans isomers respectively, making it a total of two possible isomers.

Test: Structural and stereoisomerism in Coordination Complexes - Question 5

A tetrahedral compound of type [MP2Q2] has two geometrical isomers.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 5

Tetrahedral complexes do not form geometric isomers as the relative positions of all the ligands will always be same because of the geometric properties of a tetrahedron.

Test: Structural and stereoisomerism in Coordination Complexes - Question 6

A coordination complex [MX2L2], has a CN=4 and two unidentate ligands X and L. When the two L ligands are arranged opposite to each other in its geometry, it is called _______ isomer.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 6

In a square planar complex of formula [MX2L2 ] (X and L are unidentate), the two ligands X may be arranged adjacent to each other in a cis isomer, or opposite to each other in a trans isomer

Test: Structural and stereoisomerism in Coordination Complexes - Question 7

Which of the following is not a subdivision of structural isomerism?

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 7

Geometrical isomerism is a type of stereoisomerism. Linkage, coordination and ionisation isomers show structural isomerism with different bonds.

Test: Structural and stereoisomerism in Coordination Complexes - Question 8

Two or more compounds that have the same chemical formula, but different arrangement of atoms are called _______

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 8

Isotopes are forms of one element due to different number of neutrons in each atom. Isotones are forms of different elements that have the same number of neutrons and allotropes are the different physical forms in which a given element can exist.

Test: Structural and stereoisomerism in Coordination Complexes - Question 9

Optical isomers are also known as __________

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 9

Optical isomers are different forms of the same complex that are mirror images of each other, and which cannot be superimposed. They are chiral complexes also known as enantiomers.

Test: Structural and stereoisomerism in Coordination Complexes - Question 10

In the coordination entity [Co(NH3)3(NO2)3], if all three N atoms of the amine ligands occupy adjacent positions at the corners of an octahedral face, the geometrical isomer formed is known as _______ isomer.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 10

Octahedral entities of the type [MA3B3] form two types of isomers based on whether the same ligand groups occupy adjacent positions on the octahedral face (fac) or positions around the meridian of the octahedron (mer).

Test: Structural and stereoisomerism in Coordination Complexes - Question 11

The square planar complex [MABCD] is known to form three isomers, two cis and one trans. Shown below are the two cis isomers of the complex. Identify the third trans isomer.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 11

If you observe the two given cis isomers, it can be seen that they are formed by simply swapping the positions of B and C, but both of them are adjacent to each other in both isomers. So, to obtain the trans isomer, the ligands B and C should lie opposite to each other. The other incorrect options are the same cis isomers but are depicted in different orientations.

Test: Structural and stereoisomerism in Coordination Complexes - Question 12

Identify the trans isomer of [Pt(NH3)2Cl2] from the following.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 12

The compound [Pt(NH3)2Cl2] forms two geometric isomers, one cis and one trans. When the two Cl ligands are arranged adjacent to each other, a cis isomer is formed and when the two Cl ligands are opposite to each other, a trans ligand is formed.

Test: Structural and stereoisomerism in Coordination Complexes - Question 13

How many geometrical isomers are possible in [Al(C2o4)3]3-?

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 13

The entity shown has a CN=6 as oxalate is a bidentate ligand. The structure of the entity will be same no matter which positions in the geometry each of the oxalate ligands occupy because their relative positions will remain the same in each case.

Test: Structural and stereoisomerism in Coordination Complexes - Question 14

Geometrical isomerism can be observed in some homoleptic complexes.

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 14

Geometrical isomerism takes place only in heteroleptic ligands as there is more than one type of bonding group that can be arranged in different possible manners to give rise to isomers.

Test: Structural and stereoisomerism in Coordination Complexes - Question 15

Which type of isomerism exhibits compounds with same chemical formula and bonds but different spatial arrangement?

Detailed Solution for Test: Structural and stereoisomerism in Coordination Complexes - Question 15

Stereoisomers have the same chemical formula and binds but have different spatial arrangement. Optical isomerism is a type of stereoisomerism.

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