d - block and f - block Elements
Which of the following statements is not correct?
DoubtBuddy
Single Choice
Separation of lanthanides from their mixture is not easy because of:
AShielding effect
BPentetrating effect
CConsequences of lanthanide contraction
Correct Answer
Dinert pair effect
Solution
Lanthanide contraction is a term used in chemistry to describe the greater than expected decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, which results in smaller than otherwise expected ionic radii for the subsequent elements starting with 72, hafnium. The decrease in ionic radii does affect their chemistry. Without the lanthanide contraction, a chemical separation of lanthanides would be extremely difficult.
SIMILAR QUESTIONS
d - block and f - block Elements
What is the expression for the covalent radius of the following? Zr _____ Hf
d - block and f - block Elements
Reason of lanthanoid contraction is:
d - block and f - block Elements
The extent of actinoid contraction is greater than lanthanoid contraction explain.
d - block and f - block Elements
The pair that has similar atomic radii is :
d - block and f - block Elements
Because of lanthanoid contraction, which of the following pairs of elements have nearly the same atomic radii?
d - block and f - block Elements
The most basic hydroxide from following is?
d - block and f - block Elements
What is meant by lanthanoid contraction? The actinoid contraction is grater than that of lanthanoid contraction. Why ?
d - block and f - block Elements
The separation of Lanthanoid elements is difficult. Explain.
d - block and f - block Elements
Which of the following factor may be regarded as the main cause of lanthanide contradiction?
Contact Details
- community@doubtbuddy.in
- M3M Cosmopolitian, Sector 66, Golf Course Extension Road, Gurgaon
- Policy Terms