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# Melting Point and Forces

APCHEM-PUUEY8

A compound $MCl_3$, where $M$ is an unknown element, has a melting point of -112$^o$C.

The compound can be identified as which of the following?

A

Aluminum chloride.

B

Phosphorus trichloride.

C

Gold chloride.

D

Iron (III) chloride.