1.

Assertion : Chemistry of Actinides is more complicated than Lanthanoids. Reason : Actinides elements are radioactive.

Answer»

If both assertion and reason are TRUE and the reason is the CORRECT EXPLANATION of the assertion
If both assertion and reason are true but reason is not a correct explanation of the assertion
Ifassertion is true but reason is false
If the assertion and reason both are false

Solution :Both assertion and reason are true but reason is not the correct explanation of assertion.
Actinides are more COMPLICATED DUE to the possibility of large number oxidation states.


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