Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Trimethyl lead Tetraethyl lead Tetramethyl lead Triethyl lead Trimethyl lead Tetraethyl lead Tetramethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry A detergent is a Drug Cleansing agent Soap Catalyst Drug Cleansing agent Soap Catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants A B C3 2 1 A B C 2 3 1 A B C 3 1 2 A B C 2 1 3 A B C3 2 1 A B C 2 3 1 A B C 3 1 2 A B C 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 electron only 1 neutron only 1 proton only 1 proton + 2 neutron 1 electron only 1 neutron only 1 proton only 1 proton + 2 neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen The combination of oxygen molecules Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen The combination of oxygen molecules 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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