Chemistry ยท General Awareness
Chemistry of Metals and Alloys
1,762 Questions
Review the physical and chemical properties of various metals and their common alloys. This collection covers industrial applications, metallurgical processes, and practical uses of elements like silicon and boron. Practice these questions to strengthen your chemistry fundamentals for exams.
Properties of metalsCommon alloysIndustrial metallurgyChemical applications
Chemistry of Metals and Alloys Questions
The Dhokra metal casting technique, practiced in various parts of India, involves creating intricate metal sculptures using a lost-wax process. What is the primary metal used in Dhokra casting?
C
Correct answer
Explanation
Dhokra casting typically uses brass as the primary metal, along with small amounts of other metals like copper and zinc.
Which metal is traditionally used in Indian metalwork?
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Gold
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Silver
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Bronze
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Copper
D
Correct answer
Explanation
Copper has been used in Indian metalwork for centuries due to its malleability, durability, and resistance to corrosion.
Which heavy metal is known for its ability to accumulate in the liver and cause liver damage?
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Mercury
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Lead
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Cadmium
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Copper
D
Correct answer
Explanation
Copper is an essential trace element, but excessive exposure can lead to copper toxicity. Copper can accumulate in the liver and cause liver damage, including cirrhosis and liver failure.
Which heavy metal is known for its ability to accumulate in the bones and cause skeletal deformities?
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Mercury
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Lead
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Cadmium
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Fluoride
B
Correct answer
Explanation
Lead is known for its ability to accumulate in the bones and cause skeletal deformities, particularly in children. Lead can also affect bone growth and development, leading to decreased bone density and an increased risk of fractures.
Which heavy metal is known for its ability to accumulate in the brain and cause neurodegenerative disorders?
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Mercury
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Lead
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Cadmium
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Aluminum
A
Correct answer
Explanation
Mercury is known for its ability to accumulate in the brain and cause neurodegenerative disorders, such as Alzheimer's disease and Parkinson's disease. Mercury can also affect cognitive function and development, particularly in children.
What are some contemporary materials used to make bridal bracelets?
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Rose gold
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White gold
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Oxidized silver
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Polished brass
Correct answer
Explanation
Contemporary bridal bracelets are crafted using a variety of materials, including rose gold, white gold, oxidized silver, and polished brass.
Which metal is considered sacred in Hinduism and is often used in the creation of religious artifacts?
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Gold
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Silver
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Copper
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Bronze
A
Correct answer
Explanation
Gold is considered sacred in Hinduism and is often used in the creation of religious artifacts due to its association with purity and divinity.
What is the primary material used in the production of cast coins?
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Gold
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Silver
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Copper
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Bronze
C
Correct answer
Explanation
Copper was the most commonly used metal for casting coins in ancient India.
What is the primary material used in traditional Indian jewelry making?
A
Correct answer
Explanation
Gold is the most commonly used metal in Indian jewelry making, due to its malleability, luster, and cultural significance.
Which of the following is a common material used in jewelry making?
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Gold
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Silver
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Copper
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All of the above
D
Correct answer
Explanation
Gold, silver, and copper are all common materials used in jewelry making. Gold is a valuable and durable metal that is often used for fine jewelry. Silver is a less valuable metal that is often used for costume jewelry. Copper is a relatively inexpensive metal that is often used for wire and other components.
Which material is commonly used in the production of electrical wires?
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Copper
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Aluminum
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Steel
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Plastic
A
Correct answer
Explanation
Copper is commonly used in the production of electrical wires due to its excellent electrical conductivity and ductility.
Which of the following is NOT a common type of jewelry-making wire?
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Copper
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Silver
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Gold
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Plastic
D
Correct answer
Explanation
Copper, silver, and gold are all common types of jewelry-making wire, while plastic is not typically used for this purpose.
Which of the following is NOT a common type of jewelry-making metal?
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Copper
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Silver
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Gold
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Aluminum
D
Correct answer
Explanation
Copper, silver, and gold are all common types of jewelry-making metals, while aluminum is not typically used for this purpose.
Which metal is commonly used in the construction of aircraft frames and fuselages?
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Aluminum
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Steel
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Titanium
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Magnesium
A
Correct answer
Explanation
Aluminum is widely used in aircraft construction due to its lightweight, high strength, and corrosion resistance.
Which metal is commonly employed in the production of turbine blades and other high-temperature components?
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Nickel-based alloys
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Stainless steel
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Copper alloys
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Titanium alloys
A
Correct answer
Explanation
Nickel-based alloys, such as Inconel and Hastelloy, are known for their high-temperature strength and resistance to oxidation and corrosion, making them ideal for turbine blades and other hot-section components.