The following are halogens except
a. fluorine
b. iodine
c. chlorine
d. phenol

The correct answer:

Phenol

Phenol is a compound, While other are elments found under the 17th group, and popularly known as Halogens.

Explore more:-The name halogen comes from the Greek words "hals", meaning "salt", and "gen", meaning "to make."The halogens are a group of elements in the periodic table. They are located to the right of the other nonmetals and to the left of the noble gases.The halogens include the five elements fluorine, chlorine, bromine, iodine, and astatine. They make up column 17 of the periodic table.They have seven valence electrons in their outer shell.They all exist as diatomic molecules (two atoms) when in their pure form.Simple compounds that contain halogens are called halides.

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Yes, endothermic means it turns cold. and some chemical changes include change of tempature.