Match List I with List II: List I (Substances) List II (Element Present) (A) Ziegler catalyst (I) Rhodium (B) Blood Pigment (II) Cobalt (C) Wilkinson catalyst (III) Iron (D) Vitamin B12 (IV) Titanium
Choose the correct answer from the options given below :
| List I (Substances) | List II (Element Present) |
| (A) Ziegler catalyst | (I) Rhodium |
| (B) Blood Pigment | (II) Cobalt |
| (C) Wilkinson catalyst | (III) Iron |
| (D) Vitamin B12 | (IV) Titanium |
Choose the correct answer from the options given below :
- A-II, B-IV, C-I, D-III
- A-II, B-III, C-IV, D-I
- A-III, B-II, C-IV, D-I
- A-IV, B-III, C-I, D-II
The Correct Option is D
Solution and Explanation
Ziegler catalyst → Titanium
Blood pigment (hemoglobin) → Iron
Wilkinson catalyst → Rhodium
Vitamin B12 → Cobalt
Thus, the correct matching is:
A-IV, B-III, C-I, D-II
So, the correct answer is: Option (4)
Top Questions on Coordination chemistry
Werner’s coordination theory in 1893 was the first attempt to explain the bonding in coordination complexes. It must be remembered that this theory was put forward before the electron had been discovered by J.J. Thomson in 1897, and before the electronic theory of valency. Werner did not have any of the modern instrumental techniques and all his studies were made using simple experimental techniques. Werner was able to explain the nature of bonding in complexes and he concluded that in complexes, the metal shows two different sorts of valency: primary and secondary. Primary valences are normally ionisable whereas secondary valences are non-ionisable.
- CBSE CLASS XII - 2025
- Chemistry
- Coordination chemistry
- Write the name and structure of a hexadentate ligand.
- CBSE CLASS XII - 2025
- Chemistry
- Coordination chemistry
- Why is [Ni(CN)4]2- square planar while [Ni(CO)4] is tetrahedral? [Atomic number : Ni = 28]
- CBSE CLASS XII - 2025
- Chemistry
- Coordination chemistry
- Based on Valence Bond Theory, explain the geometry and magnetic character of [NiCl$_4$]$^{2-$. [Atomic number: Ni = 28]}
- CBSE CLASS XII - 2025
- Chemistry
- Coordination chemistry
- Explain why in tetrahedral coordination entities, low-spin configurations are rarely observed.
- CBSE CLASS XII - 2025
- Chemistry
- Coordination chemistry
Questions Asked in JEE Main exam
- Let \( P_n = \alpha^n + \beta^n \), \( P_{10} = 123 \), \( P_9 = 76 \), \( P_8 = 47 \), and \( P_1 = 1 \). The quadratic equation whose roots are \( \frac{1}{\alpha} \) and \( \frac{1}{\beta} \) is:
- JEE Main - 2025
- Sequences and Series
- Number of functions \( f: \{1, 2, \dots, 100\} \to \{0, 1\} \), that assign 1 to exactly one of the positive integers less than or equal to 98, is equal to:
- JEE Main - 2025
- Vectors
- Three infinitely long wires with linear charge density \( \lambda \) are placed along the x-axis, y-axis and z-axis respectively. Which of the following denotes an equipotential surface?
- JEE Main - 2025
- electrostatic potential and capacitance
- The number of 6-letter words, with or without meaning, that can be formed using the letters of the word "MATHS" such that any letter that appears in the word must appear at least twice is:
- JEE Main - 2025
- Calculus
- Suppose that the number of terms in an A.P. is \( 2k, k \in \mathbb{N} \). If the sum of all odd terms of the A.P. is 40, the sum of all even terms is 55, and the last term of the A.P. exceeds the first term by 27, then \( k \) is equal to:
- JEE Main - 2025
- Arithmetic Progression