KCET 2017 Chemistry Solved Paper

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Question : 40 of 60

Marks: +1, -0

Which of the following statement is wrong regarding lanthanoids ?

Ln(III) compounds are generallycolourless.
Ln(III) compounds are predominantly ionicin character..
The ionic size of Ln(III) ions decreaseswith increasing atomic number.
Ln(III) hydroxides are mainly basic in nature.

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