JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The best explanations for not placing hydrogen with the group of alkali metals or halogens is:

(A)Hydrogen can form compounds with all other elements
(B)Hydrogen is much lighter element than the alkali metals or the halogens
(C)The ionization energy of hydrogen is too high for group of alkali metals but too low for halogen groupCorrect
(D)None of the above

Answer: (C)

Solution

Hydrogen's ionisation energy (13.6 eV) is far higher than that of alkali metals (which have very low ionisation energies, making them easily oxidised to ) but still somewhat lower than the very high ionisation energies of halogens, and its electron affinity is also much lower than that of

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Question ID VK-137432