0

Guest

Courses New

Knowing that the Chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect ? (1) Because of the large size of the Ln (III) ions the bonding in its compounds is predominently ionic in character (2) The ionic sizes of Ln (III) decrease in general with increasing atomic number. (3) Ln (III) compounds are generally colourless. (4) Ln (III) hydroxides are mainly baisc in character.

Knowing that the Chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect ?
(1) Because of the large size of the Ln (III) ions the bonding in its compounds is predominently ionic in character
(2) The ionic sizes of Ln (III) decrease in general with increasing atomic number.
(3) Ln (III) compounds are generally colourless.
(4) Ln (III) hydroxides are mainly baisc in character.

Grade:12

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
(Ln) +3 compound are generally coloured due to partially filled f orbital which permits f-f transition.
rest all the statements are correct:-
Because of the large size of the Ln (III) ions the bonding in its compounds is predominently ionic in characte
The ionic sizes of Ln (III) decrease in general with increasing atomic number.
Ln (III) hydroxides are mainly baisc in character.

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More