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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Analyzing +4 | -1

The element having maximum value for its

3^{\text {rd }}

ionisation enthalpy is

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Correct option: B

\mathrm{Be}

Option B (

\mathrm{Be}

) is correct because after losing two electrons, Beryllium attains a stable noble gas configuration, making the removal of the third electron require a very high amount of energy.

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The compounds of the s-block elements, with the exception of lithium and ...

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\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F}

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