Coordination Chemistry Practice Questions
JEE · Chemistry · 1435 free MCQs with instant results and detailed explanations.
1435
Total
306
Easy
606
Medium
523
Hard
Start Practicing Coordination Chemistry
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Topics in Coordination Chemistry
Crystal Field Theory
522
Werner's Theory
493
Isomerism in Coordination Compounds
420
Sample Questions from Coordination Chemistry
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
According to Werner's theory of coordination compounds, what is the primary factor that determines the geometry of a complex ion?
A.
The oxidation state of the central metal ion
B.
The number of ligands attached to the central metal ion
C.
The nature of the ligands involved
D.
The size of the central metal ion
Show Answer & Explanation
Correct Answer: C
Werner's theory states that the geometrical arrangement of ligands around the central metal ion is primarily influenced by the nature of the ligands themselves, whether they are strong or weak field ligands, which affect the spatial arrangement.
Q2
Easy
What does Werner's theory primarily address?
A.
Isomerism in coordination compounds
B.
The nature of coordination bonds
C.
The stability of coordination complexes
D.
The crystal field theory
Show Answer & Explanation
Correct Answer: A
Werner's theory provides insights into isomerism, particularly in coordination compounds.
Q3
Easy
According to Werner's theory, which of the following is a key feature of coordination compounds?
A.
They only form linear structures.
B.
They have a central metal atom bonded to ligands.
C.
They cannot exhibit isomerism.
D.
They have fixed oxidation states.
Show Answer & Explanation
Correct Answer: B
Werner's theory states that coordination compounds consist of a central metal atom bonded to various ligands.
Q4
Medium
Which of the following statements best describes Werner's Theory of coordination compounds?
A.
It states that coordination compounds have a characteristic color.
B.
It proposes that metal ions can form multiple coordination numbers.
C.
It emphasizes the importance of the oxidation state of ligands.
D.
It focuses on the ionic nature of coordination complexes.
Show Answer & Explanation
Correct Answer: B
Werner's Theory indicates that metal ions can coordinate with ligands to form complexes, and these can have varying coordination numbers, such as 4 or 6.
Q5
Medium
In a coordination compound, the central metal ion can be surrounded by which of the following?
A.
Only anionic ligands
B.
Only neutral ligands
C.
Both cationic and anionic ligands
D.
Only uncharged ligands
Show Answer & Explanation
Correct Answer: C
Coordination compounds can have both anionic and cationic ligands surrounding the central metal ion, allowing for a variety of complex structures.
Q6
Medium
According to Werner's Theory, what is the geometry of a coordination complex with coordination number 6?
A.
Tetrahedral
B.
Square planar
C.
Octahedral
D.
Linear
Show Answer & Explanation
Correct Answer: C
A coordination number of 6 typically leads to an octahedral geometry, which is a common arrangement in coordination chemistry.
Q7
Medium
Which of the following ligands is considered a bidentate ligand according to Werner's Theory?
A.
NH3
B.
Cl-
C.
EDTA
D.
H2O
Show Answer & Explanation
Correct Answer: C
EDTA can form multiple bonds to a metal ion through its two nitrogen and four oxygen atoms, making it a bidentate ligand.
Q8
Hard
According to Werner's theory, which of the following statements about coordination compounds is CORRECT?
A.
They have both primary and secondary valencies.
B.
Only primary valency is considered in their formation.
C.
Secondary valency is not related to the geometry of the complex.
D.
Coordination compounds do not show isomerism.
Show Answer & Explanation
Correct Answer: A
Werner's theory states that coordination compounds contain both primary valencies (which are satisfied by anions) and secondary valencies (which are satisfied by neutral or charged ligands), influencing the geometry.
Q9
Hard
Which of the following complexes does NOT adhere to Werner’s theory regarding coordination numbers?
A.
[Ni(NH3)6]Cl2
B.
[CoCl3(NH3)3]
C.
[Ag(NH3)2]Cl
D.
[Fe(CN)6]4-
Show Answer & Explanation
Correct Answer: B
In [CoCl3(NH3)3], the coordination number is not consistent with the primary and secondary valency concept of Werner's theory, as Co typically exhibits +3 oxidation state and should balance the coordination number properly.
Q10
Hard
Which of the following statements best describes the significance of the primary valency in Werner's theory?
A.
It determines the spatial arrangement of ligands.
B.
It corresponds to the oxidation state of the metal.
C.
It is satisfied only by neutral ligands.
D.
It is irrelevant in determining the properties of the complex.
Show Answer & Explanation
Correct Answer: B
The primary valency reflects the oxidation state of the central metal atom in a complex, crucial for understanding its bonding and overall charge.
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Coordination Chemistry — JEE Chemistry Practice Questions Online
This page contains 1435 practice MCQs for the chapter Coordination Chemistry in JEE Chemistry. The questions are organized by difficulty — 306 easy, 606 medium, 523 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.