Chemistry · General Awareness

Chemistry of Metals and Alloys

1,851 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

Multiple choice

Which of the following options is a non-metal?

  1. Tin

  2. Lead

  3. Phosphorus

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Phosphorus is a non-metal element (Group 15, Period 3). Tin and Lead are metals in Group 14. This question tests basic periodic table knowledge - identifying non-metals versus metals.

Multiple choice

Which of the following metals is the most malleable?

  1. Silver

  2. Lead

  3. Gold

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gold is the most malleable metal, meaning it can be hammered into extremely thin sheets without breaking. A single gram of gold can be beaten into a sheet covering several square meters. While silver and lead are also malleable metals, gold exceeds all others in this property, which is why it's used in gold leaf applications.

Multiple choice

Which set of elements contains a metalloid?

Metals are generally hard, shiny and malleable. They are good conductors. Examples of metals are gold, silver, iron, uranium and zinc.

Non-metals are brittle and are not easily molded into shapes. They are poor conductors of heat and electricity. Examples of non-metal elements are hydrogen and carbon.

Metalloids share characteristics of both metals and non-metals and are also called semi-metals. Metalloids are typically semi-conductors, which means that they both insulate and conduct electricity. This semi-conducting property makes them very useful as a computer chip material. Examples of metalloid elements are silicon and boron.

  1. 19K39, 33As74.9, 18Ar39.9, 25Mn54

  2. 3Li6.54, 12Mg24.305, 20Ca40.078, 36Kr83.378

  3. 83Fr223, 53I126.9, 8O16, 86Rn222

  4. 3Li6, 12Mg24.305, 20Ca40.078, 18Ar39

  5. 11Na23, 19K39, 26Fe55.845, 16S32.06
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 
 This is correct.

Multiple choice

The copper matte contains

  1. cuprous oxide and iron oxide

  2. Cu and Fe

  3. copper sulphide and iron sulphide

  4. copper sulphide and zink sulphide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ans : 3.

Multiple choice

Which of the following sets comprises of non ferrous metals?

  1. Copper, lead, zinc, tin, aluminium

  2. Copper, lead, sulphur, tin, aluminium

  3. Copper, lead, zinc, phosphate, aluminium

  4. Copper, sulphur, phosphate, tin, aluminium

  5. Copper, lead, sulfur, phosphate, nitrate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Copper, lead, zinc, tin, aluminium are all non ferrous metals.

Multiple choice

The alloy 'bronze' is made of

  1. tin and copper

  2. gold and tin

  3. gold, tin and copper

  4. gold and zinc
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bronze is primarily an alloy of copper and tin, typically containing about 88% copper and 12% tin. The combination of copper with tin creates a metal that is harder and more durable than copper alone. Bronze was one of the first alloys developed by humans, giving its name to the Bronze Age.

Multiple choice

Which one of the following does not contain cooper as its constituent?

  1. Phosphor bronze

  2. Solder wire

  3. German silver

  4. Gun metal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solder wire is an alloy of tin and lead (or tin with other metals like silver, copper, antimony in lead-free solder). It does not contain copper. The other three alloys - phosphor bronze (Cu + Sn + P), german silver (Cu + Ni + Zn), and gun metal (Cu + Sn + Zn) all contain copper.

Multiple choice

Venom is a_______

  1. solid

  2. metal

  3. toxic poison

  4. animal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Venom is a specialized toxic poison produced by certain animals like snakes, spiders, and scorpions. It's used for defense or to incapacitate prey.

Multiple choice

What is the most abundant metal in the earth's crust?

  1. Magnesium

  2. Calcium

  3. Iron

  4. Aluminium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Aluminium is the most abundant metal in Earth's crust, constituting about 8% of the crust's total weight. It's a lightweight, silvery-white metal with excellent corrosion resistance. Aluminium is never found in pure form in nature but exists in compounds like bauxite ore, which is the primary source for commercial aluminium extraction.

Multiple choice

Which among the following is also called carborundum?

  1. Silicon

  2. Germanium

  3. Gallium arsenide

  4. Silicon carbide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Silicon carbide (SiC), also known as carborundum, is a compound of silicon and carbon with chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. SiC is widely used in high-temperature/high-voltage semiconductor electronics.