Question

What is the difference between a chemical bond formed in a molecule of Cl2 and a chemical bond formed in a molecule of HCl?

A. Both Cl2 and HCl are covalent molecules, but the bonding electrons in HCl are shared more equally between atoms than in Cl2.
B. Cl2 is an ionic molecule, and HCl is a covalent molecule.
C. Cl2 is a covalent molecule, and HCl is an ionic molecule.
D. Both Cl2 and HCl are covalent molecules, but the bonding electrons in Cl2 are shared more equally between atoms than in HCl.

Answer 1

@ganeshie8 @Abhisar @Kainui

Answer 2

is this B?

Answer 3

wait no, it's D. My bad.

Answer 4

Yeah D is correct. Remember that electronegativity goes from the bottom left to the top right, with Fluorine and Oxygen being the most electronegative. Chlorine, being a halogen like Fluorine is really electronegative and because of that, it hogs the electrons more than the hydrogen, which often times is found without an electron at all. In fact, if you consider NaCl common table salt which you know to be an ionic bond already, you can compare Sodium with Hydrogen to see they are very near on the periodic table and HCl is nearly an ionic bond itself.