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# Which of the following set is a colloid of solid -Gas i. e. Aerosol .

$(a)\;Smoke\;,haze\;,foam\;rubber\qquad(b)\;smoke\;foam\;rubber\;,pumice\;stone\qquad(c)\;Smoke\;,dust\;storm\;,haze\qquad(d)\;Pumice\;stone\;,smoke\;,haze$

Answer : $\;Smoke\;,dust\;storm\;,haze$
Explanation :
Aerosol is a colloid of dispersion phase solid and dispersion medium gas . Out of the following options the aerosols are smoke , dust storm & haze .
pumice stone & foam rubber are solid sol .