Q: Manganese is extracted by heating manganese dioxide with aluminium powder. Which one of the following statements with regard to the reaction is correct?
(a)The reaction is exothermic.
(b)The reaction is endothermic.
(c)Manganese is produced as a solid.
(d)Manganese is more reactive than aluminium.
Correct Answer: (a)
The correct answer is (b): The reaction is endothermic.. Subject: Geography | Sub-topic: Economic & Mineral Geography Note: This answer was determined through AI-based research. Verify against the official answer key when available.