Chemistry The nucleus of a hydrogen atom consists of 1 proton only 1 neutron only 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only 1 proton + 2 neutron 1 electron only ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electronegative element among the following is bromine sodium fluorine oxygen bromine sodium fluorine oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as filler in tyre of rubber ? Coal Carbon black Graphite Coke Coal Carbon black Graphite Coke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is 6.023 × 1020 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1023 6.023 × 1020 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1023 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The water pollution in river is measured by the dissolved amount of Oxygen Ozone Nitrogen Chlorine Oxygen Ozone Nitrogen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry When Hydrogen starts burning in air, it produces ? Water Carbonic Acid Ammonia Methane Water Carbonic Acid Ammonia Methane ANSWER DOWNLOAD EXAMIANS APP
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