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Which of the following element is an alkali as well as halogen?(a) hydrogen(b) sodium(c) chlorine(d) magnesiumI have been asked this question in an interview for job.My enquiry is from Position of Hydrogen in the Periodic Table topic in chapter Hydrogen of Chemistry – Class 11

Answer»

Right answer is (a) hydrogen

Easy explanation: Hydrogen is an alkali METAL as well as a halogen because of its outer shell configuration as well as its high electronegative CHARACTER, no other element has a type of DUEL CHARACTERISTIC in the periodic table.



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