Question

Which hydride is found in liquid state?

• A. $HF$
• B. $HCl$
• C. $HBr$
• D. $HI$

Answer 1

The correct option is A $HF$

It is because F is more electro negative. So it require more energy to bind with it and more intermolecular is their between hydrogen and fluorine so it can stay in other form rather than liquid . As in water also oxygen is more electro negative and more kinetic energy is required to bind them so they are in liquid form

It is very simple answer there is the case of polarity and dipole moment ,single covalent Bond is their between H and F but stronger.