Q. 234.3( 14 Votes )
Why are halogens strong oxidising agents?
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.
Whenever an atom accepts an electron from another atom, the atom accepting the electron is getting reduced and the atom donating the electron is oxidized. But the electron accepting atom acts as an oxidizing agent while the electron donating atom acts as reducing agent.
Hence, they act as strong oxidizing agents.
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Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?Chemistry - Exemplar
A. Account for the following:
(i) Ozone is thermodynamically unstable.
(ii) Solid is ionic in nature.
(iii) Fluorine forms only one oxoacid HoF.
B. Draw the structure of
(ii)Chemistry - Board Papers