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 these fits gap 17?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. begins

  2. had began

  3. have begun

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

People had begun mining before this time.

Multiple choice

Which of these fits gap 18?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. Although

  2. Finally

  3. Later

  4. As soon as
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

With passage of time, man came to know about bronze.

Multiple choice

Which of these fits gap 19?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. reached

  2. ended

  3. passed

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

Passage of time is being referred to.

Multiple choice

Which of these fits gap 18?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. Although

  2. Finally

  3. Later

  4. As soon as
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

With passage of time, man came to know about bronze.

Multiple choice

Which of these fits gap 17?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. begins

  2. had began

  3. have begun

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

People had begun mining before this time.

Multiple choice

Which of these fits gap 19?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. reached

  2. ended

  3. passed

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

Passage of time is being referred to.

Multiple choice

Which of these fits gap 20?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
History reveals that copper was used by man as early as the Stone Age. By 4000 BC, mining of copper______ (17) _______.
_____ (18) ______, man came to know that bronze, an alloy of copper, zinc and tin is harder than copper.
As time ____ (19) ______, copper came to be one of the most important metals in the world, used extensively in electrical and other industries.
______ (20) ______ of the world’s copper comes from Canada, USA, Chile, Zambia and Russia.

  1. Least

  2. Many

  3. Much

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

We are talking of a quantity (much), not a number. Also there is no comparison.

Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Two solid mixtures are :

  1. steel.

  2. solder.

  3. phosphor bronze.

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

All of them are alloys. Alloy is a material which is composed by mixing two or more metals or a metal and a non-metal. An alloy may be a solid solution of the elements (a single phase), a mixture of metallic phases (two or more solutions) or an intermetallic compound with no distinct boundary between the phases.
Examples of alloys are steel, solder, brass, pewter, phosphor bronze and an amalgam.

Multiple choice

Royal Naboo ships are coated with?

  1. Chromium

  2. Silver

  3. Silverium

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

The royal starships of Naboo, such as the J-type diplomatic barge, are famously coated in polished chromium to reflect their surroundings.