Across lanthanide series, the basicity of the lanthanide hydroxides _________ .

Consider the following statements in respect of lanthanides: The basic strength of hydroxides of lanthanides increases from La(OH)_3, " to Lu " (OH)_3 , The lanthanide ions Lu^(3+), Yb(2+) " and " Ce^(4+) are diamagnetic. Which of the statement(s) given above is/are correct?

Give the basic principle of potentiometer.

Pyridine is less basic than

Which of the following trivalent ion has the largest atomic radii in the lanthanide series?

SRP values of lanthanides lies between

The common oxidation state shown by lanthanides in their compound is ___________.