a) How can you define nanomaterials? Explain with examples. p) Gold shows golden color but can shows silver or blue color when particles are in nanometer range. Explain. c) What do you mean by nanocatalysts? Why are they highly active? a) What are the two types of methods for preparation of nanomaterials? Explain. b) Explain, with flowchart, one specific method for synthesis of nanomaterials. PVD c) After synthesis, how can you stabilize naoparticles? Explain with diagrams. a) What are nano composites? What is the importance of it? b) How can you synthess polymer nano composites? Explain. c) Discuss briefly the magnetic properties of nanomaterials