Question:
The catalytic activity of the transition metals and their compounds is ascribed to:
The catalytic activity of the transition metals and their compounds is ascribed to:
Updated On: Jun 6, 2022
- their chemical reactivity
- their magnetic behaviour
- their unfilled d-orbitals
- their ability to adopt multiple oxidation states and their complexing ability
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The catalytic activity of the transition metals and their compounds is ascribed to their ability to adopt multiples oxidation states and their complexing ability.
Was this answer helpful?
0
0
Top Questions on properties of d block elements
- The correct statement about Zn, Cd, Hg are
- JEE Main - 2024
- Chemistry
- properties of d block elements
- Chlorides of which metal are soluble in organic solvents:
- JEE Main - 2023
- Chemistry
- properties of d block elements
- Which of the following does not represent property stated against it?
- KCET - 2021
- Chemistry
- properties of d block elements
- The calculated spin only magnetic moment of $Cr^{2+}$ ion is :
- NEET (UG) - 2020
- Chemistry
- properties of d block elements
- The correct order of the first ionization enthalpies is:
- JEE Main - 2019
- Chemistry
- properties of d block elements
View More Questions
Questions Asked in KEAM exam
- A Spherical ball is subjected to a pressure of 100 atmosphere. If the bulk modulus of the ball is 1011 N/m2,then change in the volume is:
- KEAM - 2023
- mechanical properties of solids
- Two identical solid spheres,each of radius 10cm,are kept in contact. If the mass of inertia of this system about the tangent passing through the point of contact is 0. Then mass of each sphere is:
- KEAM - 2023
- System of Particles & Rotational Motion
- The value of a(≠0) for which the equation \(\frac{1}{2}(x-2)^2+1=\sin(\frac{a}{x})\) holds is/are
- KEAM - 2023
- Trigonometric Functions
- \(∫xlog(1+x^2)dx=\)?
- KEAM - 2023
- Integration by Parts
- A uniform thin rod of mass 3kg has a length of 1m. If a point mass of 1kg is attached to it at a distance of 40cm from its center,the center of mass shifts by a distance of:
- KEAM - 2023
- System of Particles & Rotational Motion
View More Questions
Concepts Used:
Properties of D Block Elements
- Multiple oxidation states- The oxidation states of d block elements show very few energy gaps; therefore, they exhibit many oxidation states. Also, the energy difference between s and d orbital is very less. Therefore both the electrons are involved in ionic and covalent bond formation, which ultimately leads to multiple oxidation states.
- Formation of complex compounds- Ligands show a binding behavior and can form so many stable complexes with the help of transition metals. This property is mainly due to:
- Availability of vacant d orbitals.
- Comparatively small sizes of metals.
- Hardness- Transition elements are tough and have high densities because of the presence of unpaired electrons.
- Melting and boiling points- Melting and boiling points of transition are very high because of the presence of unpaired electrons and partially filled d orbitals. They form strong bonds and have high melting and boiling points.
- Atomic radii- The atomic and ionic radius of the transition elements decreases as we move from Group 3 to group 6. However, it remains the same between group 7 and group 10, and from group 11 to group 12 increases.
- Ionization enthalpy- The ionization enthalpies of the transition elements are generally on the greater side as compared to the S block elements