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 chemistry chemical bonding and structure alloys and their properties metals, alloys and crystals elements and compounds

An alloy which does not contain copper is:

  1. solder

  2. bronze

  3. brass

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

Solder- an alloy of tin $(Sn)$ and lead $(Pb)$
Bronze-an alloy of copper $(Cu)$ and tin $(Sn)$
Brass-an alloy of copper $(Cu)$ and Zinc $(Zn)$
Bell metal-an alloy of copper $(Cu)$ and tin $(Sn)$
Therefore option A is correct

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

Element present in the stainless steel is ______________.

  1. Iron

  2. Chromium

  3. Nickel

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stainless steel also known as inox steel. It is an alloy of steel (Iron and nickel) with chromium 10.5%. It does not corrode readily, rust or stain. There are different grades of stainless steel. It is used where both the properties of steel and corrosion resistance are required.

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

Which of the following alloy contains mercury?

  1. Bronze

  2. Zinc amalgam

  3. Brass

  4. German silver
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Amalgam is a substance formed by the reaction of mercury with another metal.Almost all metals form amalgams with mercury with exceptions being iron,platinum,tungsten and tantalum.Silver-mercury amalgams are important in dentistry.

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

Identify the alloy which does not contain zinc metal.

  1. Gun metal

  2. German silver

  3. Brass

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

Bronze is an alloy of $Cu$ and $Sn$. It does not contain zinc metal.

Alloy                                 Metals present
Gun metal $Cu$ (88%) $Sn$ (10%) $Zn$ (2%)
German silver $Cu,\ Zn$ and $Ni$
Brass $Cu$ and $Zn$
Bronze $Cu$ and $Sn$
Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

An alloy is :

  1. an element

  2. a compound

  3. a homogeneous mixture

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

An alloy is a homogeneous mixture of two or more metals in a definite proportion. 


The alloy is made by mixing a metal in the molten state with another metal and then solidified.

Hence the correct option is C.

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

An alloy of copper, silver and gold is found to have copper constituting the ccp lattice. If silver atoms occupy the edge wares and gold is resent at a body centre. the alloy has a formula?

  1. $ Cu _{4}Ag _{2}Au $
  2. $ Cu _{4}Ag _{4}Au $
  3. $ Cu _{4}Ag _{3}Au $

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

In a ccp lattice, Cu atoms at corners and faces give 4 atoms per unit cell. Silver atoms at edge centers (12 edges * 1/4 = 3 atoms). Gold at body center (1 atom). Formula: Cu4Ag3Au.

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

Which of the following is an alloy?

  1. Silver

  2. Gallium
  3. $22$ carat gold
  4. $24$ carat gold
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

22 karat gold contains 22 parts gold and 2 parts of other metals added as alloy. ... 18 karat gold contains 18 parts pure gold with 6 parts of other metals added. In the West the karat is expressed in fineness.

Hence 22 carat gold is an alloy.