1.

Assertion : Noble gases have highest ionization energies in their respective periods. Reason : The outermost sub-shell of noble gases in which electron enters is completely filled.

Answer»

Both assertion and reason are true and reason is the CORRECT EXPLANATION of the assertion
Both assertion and reason are true and reason is not the correct explanation of the assertion.
Assertion is true but reason is false
Both assertion and reason are false.

Answer :A::B::C::D


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