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Which of the following option is the cor...

Which of the following option is the correct order of the basic strength of metallic hydroxides

A

`Al(OH)_3 lt Lu(OH)_3 lt Ce(OH)_3 lt Ca(OH)_2`

B

`Ca(OH)_2 lt Al(OH)_3 lt Lu(OH)_3 lt Ce(OH)_3`

C

`Lu(OH)_3 lt Ce(OH)_3 lt Al(OH)_3 lt Ca(OH)_2`

D

`Cu(OH)_3 lt Ce(OH)_3 lt Ca(OH)_2 lt Al(OH)_3`

Text Solution

Verified by Experts

The correct Answer is:
A
`Ca(OH)_2` is highly basic and`Al(OH)_3` is amphoteric. As we move left to right in a period, the basicity of hydroxides decreases. So the basic character of `Ce(OH)_3 gt Lu(OH)_3`.
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