Which of the following statements about nanotechnology is/are correct?1. It deals with materials at the atomic and molecular scale.2. Nanotechnology is used in medicine and electronics.3. Nanoparticles are always harmful to the environment. - Study24x7
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Dev kumar
01 Jan 1970 05:30 AM study24x7 study24x7

Which of the following statements about nanotechnology is/are correct?

1. It deals with materials at the atomic and molecular scale.
2. Nanotechnology is used in medicine and electronics.
3. Nanoparticles are always harmful to the environment.

A

1 only

B

1 and 2 only

C

1, 2, and 3

D

2 and 3 only

UPSC
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