Question

Consider the following statements about :

Which of the above statements is/are incorrect?

• A. 1 only
• B. 1 and 3
• C. 3 only
• D. None of these

Answer 1

The correct option is C

3 only

Nanoparticles are particles between 1 and 100 nanometers in size. In nanotechnology, a particle is defined as a small object that behaves as a whole unit with respect to its transport and properties. Particles are further classified according to diameter.

Nanoparticles present possible dangers, both medically and environmentally. Most of these are due to the high surface to volume ratio, which can make the particles very reactive or catalytic. They are also able to pass through cell membranes in organisms, and their interactions with biological systems are relatively unknown.