Chemistry Commercial Vaseline is derived from Coal tar Petroleum Wool wax Plant gums Coal tar Petroleum Wool wax Plant gums ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and phosphorous Oxides of nitrogen and sulphur None of these Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous Oxides of nitrogen and sulphur None of these Oxides of carbon and nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Carbon-14 Radium Phosphorus-31 Tritium Carbon-14 Radium Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful Solar ultraviolet radiation CO2 in the air SO2 in the air Solar infrared radiation Solar ultraviolet radiation CO2 in the air SO2 in the air Solar infrared radiation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: Ultraviolet rays All radiations of Light Infra-red rays Cosmic rays. Ultraviolet rays All radiations of Light Infra-red rays Cosmic rays. ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is abundant in Gobar gas? Carbon dioxide Hydrogen Methane Oxygen Carbon dioxide Hydrogen Methane Oxygen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS