Tag: materials

Quizzes (22) Questions (81)

Questions Related to materials

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Which of the following nano materials are examples of  one dimensional nano materials?

  1. nanorods

  2. nanotubes

  3. nanowires

  4. A,B,C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In one-dimensional nanomaterials (1D), one dimension is outside the nanoscale. This class includes nanotubes, nanorods, and nanowires.
Hence option D is correct.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Which of the following nano materials are examples of  three dimensional nano materials?

  1. Nano tubes

  2. Grapherne

  3. Nano coating

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Three-dimensional nanomaterials (3D) are materials that are not confined to the nanoscale in any dimension. This class can contain bulk powders, dispersions of nanoparticles, bundles of nanowires, and nanotubes as well as multi-nanolayers. Hence option A is correct.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Nano science is the study of objects of particles of

  1. smaller size

  2. medium size

  3. bigger size

  4. Both a and b
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nano science is the study of objects of particles of smaller size of 1-100 nm. Nano particles are such small sized particles. Hence, option A is correct.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Which of the following nano materials are examples of  zero dimensional nano materials?

  1. Diamond

  2. Fullarene

  3. Nano particles

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

Accordingly, in zero-dimensional (0D) nanomaterials all the dimensions are measured within the nanoscale (no dimensions are larger than 100nm). Most commonly, 0D nanomaterials are nanoparticles.
Hence option B is correct.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Which of the following are the nanomaterials with only one dimension between 1 nm and 100 nm?

  1. Nanolayers

  2. Nanotubes

  3. Nanowires

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

Nanolayers are the nanomaterials with only one dimension between 1 nm and 100 nm. Nanotubes or nanowires are the nanomaterials with two dimension between 1 nm and 100 nm. Nanoparticles are the nanomaterials with three dimension between 1 nm and 100 nm.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

In which of the following type of nano material three dimensions are  outside the nano scale technology deals with using?

  1. One dimensional nano material

  2. Zero dimensional nano material

  3. Two dimensional nano material

  4. Three dimensional nano material
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Three-dimensional nanomaterials (3D) are materials that are not confined to the nanoscale in any dimension. This class can contain bulk powders, dispersions of nanoparticles,bundles of nanowires, and nanotubes as well as multi-nanolayers.
Hence option D is correct.

Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

Which of the following are characteristic properties of nano particles?

  1. More surface area

  2. Quantum effects

  3. Both a and b

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Two principal factors cause the properties of nanomaterials to differ significantly from other materials: increased relative surface area, and quantum effects. These factors can change or enhance properties such as
reactivity, strength and electrical characteristics.
Hence option C is correct.