Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 100 years 0.01 minute 3 billion years 13 days 100 years 0.01 minute 3 billion years 13 days ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Potassium Aluminium Fluorine Lead Potassium Aluminium Fluorine Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was bronze copper gold iron bronze copper gold iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry L.P.G. is mostly liquefied Oxygen Butane Methane Hydrogen Oxygen Butane Methane Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 neutron only 1 electron only 1 proton only 1 proton + 2 neutron 1 neutron only 1 electron only 1 proton only 1 proton + 2 neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double nitrate Hydrated chlorides Nitrates of aluminium Double sulphates Double nitrate Hydrated chlorides Nitrates of aluminium Double sulphates ANSWER DOWNLOAD EXAMIANS APP
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