Increase in ionic character of LiF,K2O,SO2,N2,ClF3. sir please explain in detail

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Solution

N2<SO2<ClF3<K2O<LiF

ionic charecter increases as one atom is electropositive and the other is electronegative.

N2 is obviously least ionic as this has a covalent bond formed by same molecule.

SO2 has slightly high ionic charecter as sulphur and oxygen are in the same but sulphur is below oxygen and thus has lower electronegativity

ClF3 also is less ionic because both atoms are non metals and electronegative but it has slightly more ionic charecter than N2 as these are different atoms. Flourine is highly electronegative and the the e-negativity difference between sulphur and chlorine is lower than that between oxygen and flourine.

The last two compounds are highly ionic as one atom is electropositive and other is e-negative. Among them K2O is less ionic because LiF has flourine which is way more electronegative than oxygen

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