Select species which have highest and lowest boiling point respectively from given isoelectronic species :- Ne, HF , H 2 O , NH 3 , CH 4

Question

Select species which have highest and lowest boiling point respectively from given isoelectronic species :- Ne, HF , H 2 ​ O , NH 3 ​ , CH 4 ​

TestHub · Accepted Answer

Given species have a similar number of electrons (isoelectronic), so the boiling point depends mainly on intermolecular forces.

H₂O has the strongest hydrogen bonding network, so it has the highest boiling point.

Ne is a noble gas with only weak London dispersion forces, so it has the lowest boiling point.

Therefore, the order is:

H₂O > HF > NH₃ > CH₄ > Ne

$H i g h es t : H_{2} O L o w es t : N e$

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