The d- and f- Block Elements - Online Test

Q1. The f – block elements are known as
Answer : Option D
Explaination / Solution:

F block elements are known as inner transition elements.

Q2. 4d transition elements series are from
Answer : Option D
Explaination / Solution:

4d series arises from Y ( 4d15s2)
Q3. The inner transition metals of 5 f series is known as
Answer : Option D
Explaination / Solution:

inner transition metals of 5 f series is known as Actinoids.

Q4. Which among the following is the coinage metal?
Answer : Option A
Explaination / Solution:

Cu , Ag ,Au are known as coinage metals.

Q5. Which among the following elements does not belong to first transition series?
Answer : Option B
Explaination / Solution:

Ag belongs to second transition series.

Q6. Which among the following is not considered as a part of transition elements?
Answer : Option A
Explaination / Solution:

Zn, Cd and Hg are not considered as transition elements because they donot have incompletely filled d orbital in its ground state or stable oxidation state.

Q7. Which among the following transition metal has lowest melting point?
Answer : Option B
Explaination / Solution:

Zn has lowest melting point because it doesnot have any unpaired electrons.

Q8. Transition metals with highest melting point is
Answer : Option A
Explaination / Solution:

W belongs to 5d series and also it have lot of unpaired electrons thus it forms strong metallic bonding.

Q9. Which is the most stable oxidation state of iron?
Answer : Option A
Explaination / Solution:

Fe has d5configuration in +3 oxidation state.
Q10. Electronic configuration of Cu3+ is
Answer : Option B
Explaination / Solution:

Cu has atomic number 29.