Inorganic Chemistry - d & f Block Elements

⏱ Time: 0s

Q1. Which of the following is a property of actinides? (2020)

Solution:

All actinides are radioactive, with many being synthetic and unstable.

⏱ Time: 0s

Q2. Which of the following compounds is a typical example of a complex ion? (2022)

Solution:

Ag(NH3)2+ is a complex ion formed by silver and ammonia.

⏱ Time: 0s

Q3. Which of the following ions has the highest magnetic moment? (2023)

Solution:

Fe²⁺ has the highest magnetic moment due to its higher number of unpaired electrons compared to Co²⁺, Ni²⁺, and Cu²⁺.

⏱ Time: 0s

Q4. What is the primary oxidation state of vanadium in V2O5? (2023)

Solution:

In V2O5, vanadium has an oxidation state of +5.

⏱ Time: 0s

Q5. Which of the following f-block elements is used in making strong permanent magnets? (2022)

Solution:

Neodymium is used in making strong permanent magnets, known as neodymium magnets.

⏱ Time: 0s

Q6. Which of the following is a common oxidation state of iron? (2023)

Solution:

Iron commonly exhibits oxidation states of +2 and +3, with +3 being more prevalent in compounds.

⏱ Time: 0s

Q7. Which of the following is not a characteristic of d-block elements? (2023)

Solution:

D-block elements typically have variable oxidation states and lower ionization energies compared to p-block elements.

⏱ Time: 0s

Q8. Which of the following compounds is a common oxidation state of vanadium? (2022)

Solution:

All the listed compounds represent common oxidation states of vanadium: +5 in V2O5, +2 in VO, and +3 in V2O3.

⏱ Time: 0s

Q9. What is the color of the complex ion [Cu(NH3)4]2+? (2021)

Solution:

[Cu(NH3)4]2+ is known to exhibit a blue color due to d-d transitions.

⏱ Time: 0s

Q10. Which of the following is a common oxidation state of manganese? (2022)

Solution:

Manganese commonly exhibits an oxidation state of +2.