Final answer:
Lanthanum and cerium chlorides (LaCl3/CeCl3) can be obtained in a flow of carbon tetrachloride at 500 degrees Celsius with ammonium chloride when heated, without forming oxochlorides.
Step-by-step explanation:
The statement is true. Lanthanum and cerium chlorides (LaCl3/CeCl3) can be obtained in a flow of carbon tetrachloride at 500 degrees Celsius with ammonium chloride when heated, without forming oxochlorides.