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Structural and Physical Properties of Carbonyls

which of the ...

Question

which of the following hydrogen halides has the most polar molecule and why? HI,HBr,HCl,HF

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Solution

Since fluorine is the most electronegative element and H is the most electropositive element, HF is the most polar.

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The correct order of thermal stability of hydrogen halides (H – X) is

The correct order of the thermal stability of hydrogen halides (H -X) is

Q. The following hydrogen halides (

H F, H C l, H B r

H I

) are all polar molecules. The strength of the acid each forms in water is based on which of the following?

I

. The polarity of the molecule

I I

. The size of the molecule

I I I

. The strength of the bond

Q. Arrange in decreasing order of acid strength.

H F, H C l, H B r, H I

Q. The variation of the boiling points of the hydrogen halides is in the order

H F > H I > H B r > H C l

. What explains the higher boiling point of hydrogen fluoride?

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Structural and Physical Properties of Carbonyls

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