Chemistry The depletion in Ozone layer is caused by ________ . Chlorofluorocarbons Nitrous oxide Methane Carbon dioxide Chlorofluorocarbons Nitrous oxide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxide of sulphur present in the atmosphere are washed down by rains to cause : Depletion of fossil fuel reserves Lowering of pH of soil Industrial smog formation Eutrophication in lakes Depletion of fossil fuel reserves Lowering of pH of soil Industrial smog formation Eutrophication in lakes ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Nitrogen Hydrogen Chlorine Helium Nitrogen Hydrogen Chlorine Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to denature ethanol ? Phenol Methane Methyl alcohol Propyl alcohol Phenol Methane Methyl alcohol Propyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Mica Graphite Carbon Lead Mica Graphite Carbon Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following molecules has a bond order of 2.5 HCL F2 CO NO HCL F2 CO NO ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS