Which of the following is NOT a method of extracting metals from their ores?
Practice Questions
1 question
Q1
Which of the following is NOT a method of extracting metals from their ores?
Electrolysis
Roasting
Calcination
Sublimation
Sublimation is not a method used for extracting metals; it is a phase transition from solid to gas.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following is NOT a method of extracting metals from their ores?
Solution: Sublimation is not a method used for extracting metals; it is a phase transition from solid to gas.
Steps: 5
Step 1: Understand what 'extracting metals from their ores' means. This is the process of obtaining metals from the rocks or minerals they are found in.
Step 2: Learn about common methods of extracting metals. These include methods like smelting, electrolysis, and chemical reduction.
Step 3: Identify the term 'sublimation'. Sublimation is when a solid turns directly into a gas without becoming a liquid first.
Step 4: Compare sublimation with the methods of extracting metals. Sublimation does not involve obtaining metals from ores.
Step 5: Conclude that since sublimation is not a method for extracting metals, it is the correct answer to the question.
