sir please answer
Asked by minipkda
23rd May 2018,
7:42 PM
Answered by Expert
Answer:
The size of lanthanide ions decreases from La3+ to Lu3+ due to the lanthanide contraction.
With the increase in the covalent character of the hydroxide decreases the basic strength.
The order of the size of lanthanides given in options will be Pr3+ >Eu3+ > Gd3+ >Lu3+
Hence in the given options, the most basic hydroxide will be Pr(OH)3
Answered by Expert
25th May 2018,
2:06 PM
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