Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

J and L are both elements in Group 15. Each of J and L forms a gaseous covalent hydride in which the oxidation number is $-3$. In the liquefied states of these hydrides, substantial hydrogen bonding is present only in the hydride of L. Which row concerning J and L could be correct?

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