Class 12 Chemistry - Chapter The p-Block Elements NCERT Solutions | Why are halogens strong oxidising agents

Welcome to the NCERT Solutions for Class 12th Chemistry - Chapter The p-Block Elements. This page offers a step-by-step solution to the specific question from Exercise 2, Question 23: why are halogens strong oxidising agents....
Question 23

Why are halogens strong oxidising agents?

Answer

The general electronic configuration of halogens is np5, where n = 2-6. Thus, halogens need only one more electron to complete their octet and to attain the stable noble gas configuration. Also, halogens are highly electronegative with low dissociation energies and high negative electron gain enthalpies. Therefore, they have a high tendency to gain an electron. Hence, they act as strong oxidizing agents.

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