In styrene foam, the dispersed phase and dispersion medium respectively are:

gas, gas

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gas, solid

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solid, solid

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liquid, solid

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Solution

The correct option is B gas, solid
Styrene foam has dispersed phase and dispersion medium, gas and solid respectively. Styrene foam also known as Expanded polystyrene (EPS) is used for insulating and cushioning purposes. Polystyrene is a polymer made up of styrene monomer.

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