Chemistry The first metal used by a man was Silver Bronze Copper Brass Silver Bronze Copper Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is known as carbolic acid? Ethanol Phenol Oxalic acid Acetic acid Ethanol Phenol Oxalic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is absorbed No heat change takes place Heat is liberated Temperature decreases Heat is absorbed No heat change takes place Heat is liberated Temperature decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The combination of oxygen molecules ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is not a green house gas ? CH4 N2O CO2 Chlorofluorocarbons CH4 N2O CO2 Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electropositive elements among the following is Cs K Na Ca Cs K Na Ca ANSWER DOWNLOAD EXAMIANS APP
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