Chemistry · p-Block Elements
A 'p'-block element (E) and hydrogen form a binary cation (EHx)+, while EH3 on treatment with K2HgI4 in an alkaline medium gives a brown precipitate of basic mercury(II) amido-iodine (Nessler's precipitate). Given below are the first ionisation enthalpy values (in kJ mol-1) for the first element of groups 13, 14, 15, and 16. Identify the correct first ionisation enthalpy value for element E.
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Correct answer
1402
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