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. Hence, they act as strong oxidizing agents.
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Give the formula and describe the structure of a noble gas species which is isostructural with:
(i) ICl-4
(ii) IBr-2
(iii) BrO-3
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What happens when sulphur dioxide is passed through an aqueous solution of Fe(III) salt?
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Arrange the following in the order of property indicated for each set:
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(iii) NH3, PH3, AsH3, SbH3, BiH3- increasing base strength.
Comment on the nature of two S-O bonds formed in SO2 molecule. Are the two S-O bonds in this molecule equal?
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(iv) Amminebromidochloridonitrito-N-platinate(II)
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(ii) Write IUPAC names of all the isomers.
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(ii) 3-Hydroxybutanal
(iii) 2-Hydroxycyclopentane carbaldehyde
(iv) 4-Oxopentanal
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(i) a green precipitate with aqueous potassium fluoride, and
(ii) a bright green solution with aqueous potassium chloride
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THANKS
Halogen are smaller in size and they need one electron to have stable confi. So they react as strong oxidising agent.