Q50 / 150 · MHT CET 2026 (11 April Shift 2) · Chemistry
Which of the following nanomaterial has all the three dimensions $< 100$ nm?
- ANanotubes
- BNanowires
- Correct answerCNanoshells
- DThin films
Solution
Nanomaterials are classified based on the number of dimensions that are in the nanoscale range ($1$ to $100$ nm).
Zero-dimensional (0D) nanomaterials have all three dimensions in the nanoscale ($< 100$ nm). Examples include nanoparticles, quantum dots, and nanoshells.
One-dimensional (1D) nanomaterials have two dimensions in the nanoscale and one dimension outside the nanoscale. Examples include nanotubes and nanowires.
Two-dimensional (2D) nanomaterials have one dimension in the nanoscale and two dimensions outside the nanoscale. Examples include thin films and coatings.
Since nanoshells are zero-dimensional nanomaterials, they have all three dimensions less than $100$ nm.
Zero-dimensional (0D) nanomaterials have all three dimensions in the nanoscale ($< 100$ nm). Examples include nanoparticles, quantum dots, and nanoshells.
One-dimensional (1D) nanomaterials have two dimensions in the nanoscale and one dimension outside the nanoscale. Examples include nanotubes and nanowires.
Two-dimensional (2D) nanomaterials have one dimension in the nanoscale and two dimensions outside the nanoscale. Examples include thin films and coatings.
Since nanoshells are zero-dimensional nanomaterials, they have all three dimensions less than $100$ nm.
Hence, the correct answer is option: 'C'.