First slide

Chemical properties

Question

( I ) Among HX, HF is liquid while others are gases
( II ) HF has strong hydrogen bond

Easy

A

I and II both are true
B

I is true and II is false
C

I is false and II is true
D

I and II are false

Solution

HF is a liquid but other hydrogen halides are gases at room temperature because strong attractive forces between H and F as compared to other halides.
HF is a diatomic molecule and due to high electronegativity of fluorine atom there occurs strong hydrogen bonding between hydrogen and fluorine atom.

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