Chemistry The first metal used by a man was Bronze Silver Brass Copper Bronze Silver Brass Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Can have any value above zero Cannot be negative Can never be positive Will always be positive Can have any value above zero Cannot be negative Can never be positive Will always be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wax used for making candle is chemically a mixture of Aliphatic and aromatic hydrocarbons Aliphatic hydrocarbons Aromatic hydrocarbons Cyclic hydrocarbons Aliphatic and aromatic hydrocarbons Aliphatic hydrocarbons Aromatic hydrocarbons Cyclic hydrocarbons 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 The most volatile of the given liquids is Ether Liquid He Liquid NH3 Liquid Ether Liquid He Liquid NH3 Liquid ANSWER DOWNLOAD EXAMIANS APP
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