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 one of the following sets of alloys listed below contains chromium?

  1. Duralumin, magnalium, bell metal

  2. Invar, babbit metal, monel metal

  3. White metal, type metal, gun metal

  4. Nichrome wire, stainless steel, inconel

  5. Solder, wood metal, electron
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because nichrome wire, stainless steel and inconel all contain chromium in their alloy composition.

Multiple choice

Which of the following metal ions are colourless?

  1. Cu2+
  2. Ag+
  3. V5+
  4. Cd2+
  5. Ti3+

  1. 1 and 2

  2. 1 and 3

  3. 2, 3 and 4

  4. 3, 4 and 5

  5. 4 and 5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Correct answer. The metal ions not having unpaired electrons (n−1)d0 or having completely filled d orbital (n−1)d10 do not absorb radiations in visible region, since d-d transitions are not possible. Hence, they are colourless ions. Among the given ions, Ag+ (4d10), V5+ (3d0), Cd2+ (4d10) are colourless.

Multiple choice

Which was the first metal to be used by man?

  1. Iron

  2. Silver

  3. Lead

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

Copper was the first metal discovered and used by humans, marking the beginning of the Chalcolithic period or Copper Age. It was relatively easy to extract and shape compared to other metals.

Multiple choice

Which of the following statements is/are correct?

a. Chemical analyses have shown that both the Omani copper and Harappan artefacts have traces of nickel, suggesting a common origin. b. Mesopotamian texts refer to copper being brought from a region called Magan, which is possibly a name of Harappa. c. A distinctive type of vessel, a large Harappan jar coated with a thick layer of black clay has been found at Omani sites.

  1. a and b

  2. a and c

  3. b and c

  4. only b

  5. a, b and c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer as both statements a and c are correct.

Multiple choice

Which metal was not known to the Indus people?

  1. Iron

  2. Silver

  3. Gold

  4. Steel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Indus Valley Civilization was a Bronze Age civilization. While they used copper, bronze, gold, and silver, there is no archaeological evidence that they knew about or used iron.

Multiple choice

The most malleable metal is

  1. platinum

  2. silver

  3. iron

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

Gold is the most malleable and ductile metal. It can be hammered into extremely thin sheets (gold leaf) without breaking, which is a key property for its use in jewelry and electronics.