Chemistry The first metal used by man was gold copper bronze iron gold copper bronze iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Muddy water is treated with alum in purification process, itis termed as : Adsorption Coagulation Emulsification Absorption Adsorption Coagulation Emulsification Absorption ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of CO2 layer SO2 layer O3 layer O 2 layer CO2 layer SO2 layer O3 layer O 2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the human body is Carbon Nitrogen Oxygen Iron Carbon Nitrogen Oxygen Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wood spirit is Butyl alcohol Methyl alcohol Propyl alcohol Ethyl alcohol Butyl alcohol Methyl alcohol Propyl alcohol Ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cloud is a colloidal dispersion of Air in a dispersion medium of water Water drops in a dispersion medium of air Fog in a dispersion medium of water Mist in a dispersion medium of air Air in a dispersion medium of water Water drops in a dispersion medium of air Fog in a dispersion medium of water Mist in a dispersion medium of air ANSWER DOWNLOAD EXAMIANS APP
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