Which of the following statement is correct for pumice stone?
A
Dispersed phase is gas, dispersion medium is solid and it is a solid sol
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B
Dispersed phase is solid, dispersion medium is solid and it is a solid sol
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C
Dispersed phase is solid, dispersion medium is gas and it is aerosol
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D
Dispersed phase is liquid and dispersion medium is solid and it is an emulsion
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Solution
The correct option is A Dispersed phase is gas, dispersion medium is solid and it is a solid sol Pumice stone is a solid sol in it dispersed phase is gas and dispersion medium is solid.