Home
Class 12
CHEMISTRY
Arrange (I)Ce^(3+),(II)La^(3+),(III)Pm^(...

Arrange `(I)Ce^(3+),(II)La^(3+),(III)Pm^(3+)` and `(IV)Yb^(3+)` in increasing order of their ionic radii.

A

`Ce^(+3) lt Yb^(+3)lt P m^(+3) lt La^(+3)`

B

`Yb^(+3) lt Pm^(+3) ltLa^(+3) lt Ce^(+3)`

C

`Yb^(+3) lt Pm^(+3)lt Ce^(+3) lt La^(+3)`

D

`Pm^(+3) ltLa^(+3) lt Ce^(+3) lt Yb^(+3)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Arrange Ce^(3+),La^(3+), Pm^(3) and Yb^(3+) in increasing order of their size -

Li^(+),Mg^(2+),K^(+),Al^(3+) (Arrange in increasing order of radii)

Arrange the acids (I) H_2SO_3 , (II) H_3PO_3 and (III) HClO_3 in the decreasing order of acidity.

Arrange CaCO_(3),KHCO_(3) and NaHCO_(3) in increasing order of solubilities.

{:(CH_(3)COOH,H-COOCH_(3),CH_(3)-CONH_(2),CH_(3)-CH_(2)-CH_(2)-OH,),((I),(II),(III),(IV),):} The correct increasing order of boiling points is

Consider the following species: N^(3-) , O^(2-) , F^(ө) , Na^(o+) , Mg^(2+) and Al^(3+) a. What is common in them? b. Arrange them in the order of increasing ionic radii.

Consider the following species: N^(3-) , O^(2-) , F^(ө) , Na^(o+) , Mg^(2+) and Al^(3+) a. What is common in them? b. Arrange them in the order of increasing ionic radii.

Arrange the following in the increasing order of their NaCl, MgCl_(2), SiCl_(4), AlCl_(3)("ionic character")

Arrange the following groups of substances in the order of the property indicated against each group: (i) NH_(3)PH_(3)AsH_(3)SbH_(3) increasing order of boiling points (ii)O,S,Se,To increasing order of electron gain enthalphy with negative sign

The order of leaving group ability is .^(-)underset((I))(OAc).^(-) underset((II))(OMe).^(-)underset((III))(SO_3Me).^(-)underset((IV))(SO_3CF_3) The order of leaving group ability is