Chemistry Ozone layer is present in Troposphere Ionosphere Stratosphere Exosphere Troposphere Ionosphere Stratosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Iron Copper Titanium Aluminium Iron Copper Titanium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Ammonia Nitrogen Nitric acid Nitrogen dioxide Ammonia Nitrogen Nitric acid Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of lemon is due to the presence of which of the following ? Formic acid Oxalic acid Acetic acid Citric acid Formic acid Oxalic acid Acetic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is pure matter ? Air Brass Iron Carbon–dioxide Air Brass Iron Carbon–dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO2, NO2 and SO3 CO, CO2 and SO2 NO, SO3 and H2S CO2, H2S and NO2 CO2, NO2 and SO3 CO, CO2 and SO2 NO, SO3 and H2S CO2, H2S and NO2 ANSWER DOWNLOAD EXAMIANS APP
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