JEE Mains Model Paper 3

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Question : 78 of 90

Marks: +1, -0

Identify the wrong statement in the following

The colour of tripositive lanthanide ions with 4fn configuration is similar to thelanthanide ion with 4f14−n configuration
Basic nature increases from La(OH)3 to Lu(OH)3
Lanthanides are obtained by the reduction of anhydrous halides with Na or Mgmetals.
Lanthanides liberate H2 gas from hot water

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