Which of the following are characteristic properties of nano particles?

More surface area

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Quantum effects

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Both a and b

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None of the above

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Solution

The correct option is C Both a and b
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.

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