Of the well-characterized elements of group 7A, which would exhibit the following properties?

Question

It reacts with the alkali metals (M) to form a salt MX, where X is the halogen.
Its hydrogen halide, HX, forms an acidic solution.
It is prepared by electrolysis from a molten salt.
It forms interhalogen compounds only of the form XA, where A is the unknown and X is another halogen.

1. fluorine 2. chlorine 3. bromine 4. iodine

Answer 1

fluorine is prepared by electrolysis

Answer 2

Flourine


It reacts with the alkali metals (M) to form a salt MX, where X is the halogen.
Its hydrogen halide, HX, forms a weakly acidic solution.
It is more reactive than the other halogens.
It forms interhalogen compounds only of the form XA, where A is the unknown and X is another halogen.