A certain solid substance, that is very hard, has a high melting point and is nonconducting unless melted is most likely to be:A) I₂
B) KCl
C) NO₂
D) H₂O
E) Cr
It is an odourless gas with a melting point of of 770°c and a boiling point of about 1420°c, it exists in a white crystalline solid form. KCl is highly water soluble and also soluble in other variety of polar solvent but insoluble in many organic solvents.
