If you were to go into the interior of the Sun, which material would indicate if you are in the core, radiative zone, or convective zone?
A. Gas
B. Liquid
C. Different sets of physical and behavioral properties

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.