Science General · Chemistry

Materials and Their Applications

2,856 Questions

Materials and Their Applications questions examine the properties and uses of raw materials like ceramics, cement, clay, and glass. This topic is a core component of general science in SSC, railways, and technical exams. Review these questions to master the practical applications of various compounds.

Ceramic insulatorsCement raw materialsSculpting and pottery clayGlassblowing materialsSustainable construction materials

Materials and Their Applications Questions

Multiple choice chemistry petrochemicals and polymers addition polymerisation types of polymerisation reactions polymer

Which is used in making various types of pipes?

  1. PVR

  2. PVC

  3. Bakelite

  4. Melamine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
PVC (polyvinyl chloride) is used in making various types of pipes.
Note: PVC thermoplastic polymer. Its properties are between elastomers and fibers. On heating, it becomes soft and on cooling, become hard. It can be remoulded and recycled.
Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

The size of a nano particle is  about _________ times smaller than the diameter of a single strand of human hair.

  1. 10

  2. 100

  3. 1000

  4. 50000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The size of a nanoparticle is  about 50000 times smaller than the diameter of a single strand of human hair and 1/100th of a typical bacterium.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

____________ nanotubes are used as strengthening rods and toughening elements in structural composite materials.

  1. Carbon

  2. Gold

  3. Silver

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

Carbon nanotubes are used as strengthening rods and toughening elements in structural composite materials. Example of a carbon nanotube is Fullerene nanotube.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

_______ nanoparticles are widely used in sunscreens and cosmetics, stain resistant fabrics and dirt repellent paints.

  1. The metal oxide

  2. Gold

  3. Silver

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

The metal oxide nanoparticles are widely used in sunscreens and cosmetics, stain-resistant fabrics and dirt repellent paints. They are used in sunscreen and cosmetics because they reflect the visible light and absorb UV light efficiently.

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

Which of the followings prove that plastics do not make food and medicine toxic?

  1. Milk pouches

  2. Edible oil container

  3. Ice-cream packs

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

Plastics are not toxic when come in contact with food and medicines if they are synthesized according to permissible standards. Plastics are used world-over because they are safe for packaging of foods, medicines and child care products. A few examples are - milk pouches, edible oil container, ice-cream packs, blister packs for tablets and capsules. I.V. fluids and blood is collected and stored in plastic bags.

Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

Which piece of laboratory equipment would be used to grind large crystals into a powder?

  1. Crucible

  2. Evaporating dish

  3. Tongs

  4. Erlenmeyer flask

  5. Mortar and pestle
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation
Mortar and pestle $\rightarrow$
It is used for grinding and crushing chemicals for assorted lab procedures. It has various sizes and made of porcelain with unglazed interiors.
Hence a piece of laboratory equipment would be used to grind large crystals into a powder is mortar and pestle.
Hence the required answer is (E) Mortar and pestle.
Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

What are the uses of glass tube?

  1. Laboratory glassware

  2. Lighting application

  3. Solar thermal system and pharmaceutical packaging

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

Glass tubes or glass tubing are hollow pieces of various glass types (like borosilicate, flint, aluminosilicate, soda lime, lead or quartz glass) with a large variety of applications which are laboratory glassware, lighting applications, solar thermal systems and pharmaceutical packaging.

Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

Which of the following are correct regarding glass tubes?

  1. They are hollow pieces of various glass

  2. They are used to mix solid substances

  3. Can be cut into pieces of desirable purpose

  4. Interacts with the solution
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

Glass tubed or glass tubing are hollow pieces of various glass types with a large variety of applications which are laboratory glassware. They can be cut into various sizes.

Glass is a non-crystalline amorphous solid that is often transparent. Since it is non-crystalline it is brittle in nature. Also, it does not react with chemicals.

Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

What does glass rod made up of :

  1. metal silicates

  2. lime

  3. silicon dioxide

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

Silicon dioxide is usually the main constituent of glass. Other components such as lime and metl silicates are used in making of glass. 

Of the many silica-based glasses that exist, ordinary glass is formed from a specific type called soda-lime glass, composed of approximately 75% silicon dioxide, sodium oxide from sodium carbonate, calcium oxide, also called lime, and several minor additives.