⟩ Which one is polar HCl or HF?
This question is quite simple if you have an electro negativity chart:
Florine's Electronegativity: 4.0
Chlorine's Electronegativity: 3.0
Hydrogen's Electronegativity: 2.1
HCl: 3.0-2.1= .9 (Slightly polar)
HF: 4.0-2.1= 1.9 (Much more polar)