Chemistry The maximum number of covalent formed by nitrogen is 4 1 2 3 4 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas mainly contains Carbon dioxide Methane Hydrogen sulphide Carbon monoxide Carbon dioxide Methane Hydrogen sulphide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Hydrocarbon Oxides of sulphur Oxides of nitrogen Smoke Hydrocarbon Oxides of sulphur Oxides of nitrogen Smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Phosphine Chlorine Freon Sulphur dioxide Phosphine Chlorine Freon Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cloud is a colloidal dispersion of Air in a dispersion medium of water Fog in a dispersion medium of water Water drops in a dispersion medium of air Mist in a dispersion medium of air Air in a dispersion medium of water Fog in a dispersion medium of water Water drops in a dispersion medium of air Mist in a dispersion medium of air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Frequent use Oxidation of cellulose Lack of aeration Collection of dust Frequent use Oxidation of cellulose Lack of aeration Collection of dust ANSWER DOWNLOAD EXAMIANS APP
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