Metals & Ores — Set 4
Chemistry · धातुएं और अयस्क · Questions 31–40 of 50
Hematite is a widely used ore for which metal?
Correct Answer: A. Iron
• **Iron** = is commonly used in practical applications. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: B: different metal element; C: different metal element; D: incorrect choice for stated use.
Which ore is used to extract the metal Mercury?
Correct Answer: D. Cinnabar
• **Cinnabar** = is used for its specific properties and applications. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; C: incorrect choice for stated use.
Copper Pyrites (Chalcopyrite) is a significant ore of?
Correct Answer: B. Copper
• **Copper** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: different metal element; C: different metal element; D: different metal element.
Bauxite must be refined to produce which intermediate substance?
Correct Answer: B. Alumina
• **Alumina** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Magnetite is characterized by which of the following properties?
Correct Answer: B. Magnetic properties
• **Magnetic properties** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Which metal is typically extracted from 'Galena'?
Correct Answer: A. Lead
• **Lead** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: different metal element; D: different metal element.
The ore 'Cassiterite' is the world's main source of?
Correct Answer: B. Tin
• **Tin** = serves as the primary component or element. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Which of the following is the chief ore of Zinc?
Correct Answer: B. Zinc Blende
• **Zinc Blende** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Argentite is commonly referred to by which other name?
Correct Answer: A. Silver glance
• **Silver glance** = is commonly used in practical applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: different metal element; C: different metal element; D: different metal element.
Dolomite is an important industrial mineral containing?
Correct Answer: A. Magnesium
• **Magnesium** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.