Multiple Choice
Which of the following statements concerning potassium and its compounds is false?
A) Potash consists mostly of potassium carbonate.
B) Potassium is so soft that it can be cut with a butter knife.
C) Potassium reacts with oxygen to produce potassium superoxide.
D) Potassium superoxide is used in self-contained breathing apparatuses.
E) Potassium metal is prepared by electrolysis of potassium chloride.
Correct Answer:
Verified
Correct Answer:
Verified
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