Chemistry What is the chemical name for ‘Baking Soda’ ? Sodium nitrate Sodium nitrite Sodium carbonate Sodium bicarbonate Sodium nitrate Sodium nitrite Sodium carbonate Sodium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Oxides of minerals Carbonates absorbed from soil Carbon dioxide Water Oxides of minerals Carbonates absorbed from soil Carbon dioxide Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.727 0.658 0.509 0.305 0.727 0.658 0.509 0.305 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/8 1/6 1/3 1/4 1/8 1/6 1/3 1/4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many electrons in a Hydrogen atom One Three Four Two One Three Four Two ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is biodegradable ? Plastic D.T. Paper Aluminium Plastic D.T. Paper Aluminium ANSWER DOWNLOAD EXAMIANS APP
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