Question Detail

CHM 102 Group II Objective Question

Question

How are Group 2 metals generally prepared, as exemplified by magnesium?
Options
A By heating their carbonates.
B By chemical reduction with carbon.
C By electrolysis of their fused chlorides.
Correct Answer
D By reduction of their oxides with hydrogen.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The document states, 'Like group 1 metals, group 2 metals are also very reactive and are prepared by electrolysis. For example magnesium is prepared by the electrolysis of fused magnesium chloride MgCl2.'

Hint

Consider the high reactivity of Group 2 metals and what type of process is required to extract them from their compounds.

Question Info