Which of the following is most basic in natur | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In the lanthanoid series,as we move from $La$ to $Lu$,the ionic radius decreases due to lanthanoid contraction. As the ionic radius decreases,the

Vedclass · Accepted Answer

$Pr(OH)_3$

Vedclass · Answer

(C) In the lanthanoid series,as we move from $La$ to $Lu$,the ionic radius decreases due to lanthanoid contraction. As the ionic radius decreases,the covalent character of the $M-OH$ bond increases,which leads to a decrease in the basic strength of the hydroxides. Therefore,the basic strength follows the order: $La(OH)_3 > Pr(OH)_3 > Pm(OH)_3 > Eu(OH)_3 > Lu(OH)_3$. Among the given options,$Pr(OH)_3$ has the largest ionic radius and is therefore the most basic.

Which of the following is most basic in nature?

Similar Questions

Fill in the blanks:
$1.$ Heating lanthanoids with sulfur gives .......
$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........

Preparation of potassium permanganate from $MnO_2$ involves a two-step process in which the $1^{st}$ step is a reaction with $KOH$ and $KNO_3$ to produce:

Which oxide of transition metals exhibits electrical conductivity as high as that of metals?

Describe the preparation of potassium permanganate. State its physical properties,structure,and uses. Discuss its chemical properties and provide chemical reactions demonstrating the oxidizing character of $KMnO_{4}$.

The ionic charges on chromate ion and dichromate ion respectively are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module