Halogen hydrides MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET
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Hydrides is considered one of the most asked concept.
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17 Questions around this concept.
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EASYIn the case of alkali metals, the covalent character decreases in the order:
The variation of the boiling point of the hydrogen halides is in the order $\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}$..
What explains the higher boiling point of hydrogen fluoride?
Concepts Covered - 0
Hydrides
- HF is a low boiling liquid due to intermolecular hydrogen bonding. The volatility order of these hydrides follow the given order:
HCl > HBr > HI > HF
Thus, the boiling point order would be vice-versa of this order. Thus.
HF > HI > HBr > HCl - As we move down the group, the bond length between the hydrogen and the halogen element increases. Thus, thermal stability, bond strength and dipole moment decrease down the group and follow the order given below:
HF > HCl > HBr > HI - As the bond length increases down the group, the bond dissociation energy decreases and thus, the reducing character and acidic strength of hydrides decrease down the group.
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