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

Boron and silicon is

  1. Metal

  2. Metalloid

  3. Non- metal

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

Boron and silicon exhibit properties intermediate between metals and non-metals, making them metalloids. They have characteristics of both - they are semiconductors, have intermediate electrical conductivity, and can behave like metals or non-metals depending on conditions. Metalloids form the staircase line on the periodic table.

Multiple choice

Following are noble metal

  1. Gold

  2. Silver

  3. Both 1 and2

  4. Neither 1 nor2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both gold and silver are considered noble metals due to their high resistance to chemical reaction and corrosion.

Multiple choice

The metals which have very low melting point is

  1. Sodium

  2. Potassium

  3. Galium

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

Gallium has an unusually low melting point of about 30°C (86°F), which is near room temperature. This means gallium will melt in your hand. Sodium and potassium have low melting points but not as low as gallium, while sulfur is a non-metal. Gallium's low melting point makes it useful in high-temperature thermometers.

Multiple choice

the hardest substance present on earth is

  1. gold

  2. diamond

  3. platinum

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

Diamond is an allotrope of carbon and is known as the hardest naturally occurring substance on Earth due to its strong covalent crystal structure.

Multiple choice

What element is graphite made from?

  1. carbon

  2. oxygen

  3. iron

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

Graphite is an allotrope of carbon, meaning it is composed entirely of carbon atoms arranged in a specific structure.

Multiple choice chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

________ is called a space age metal and used in military jets and spacecrafts.

  1. Zinc

  2. Platinum

  3. Copper

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

TItanium is known as the space age metal and  is expected to replace most of the metals used around the industries. However, its expensive and difficult mining process is keeping it from being used so commonly as aluminium or steel. Titanium is found to be stronger, durable and corrosion resistive in comparison to steel. It has the highest strength to weight ratio of all the metals. All these properties, along with its light weight, make it an ideal metal for space crafts and military jets. It is also used in making highly water - resistant diving watches.

Multiple choice chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

In which of the following, use of non metals is more as compared to metals?

  1. human body

  2. fertilisers

  3. crackers

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

Human body if formed of many non metals Carbon, Nitrogen, Oxygen, Hydrogen, Sulphur, Phosphorus and a bit of Chlorine. 
Fertilizers are composed of Nitrogen,phosphorous,potassium-NPK
Crackers are formed of Phosphorous and sulphur.

Multiple choice chemistry metals chemical properties and uses of metals and non-metals introduction to metals physical properties of non-metals

The tip of the lead pencil is made of:

  1. lead

  2. graphite

  3. zinc

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

The tip of the lead pencil is made up of graphite.


Graphite can leave the grey mark on the paper. It was originally thought to be a part of lead. In spite of the name, the lead pencil does not contain lead.


Graphite is an allotrope of carbon, which is a good conductor of electricity and is resistant to many chemicals.

Graphite pencils are made of a mixture of clay and graphite.


Hence, te correct option is $\text{B}$