Chemistry The most abundant element by number in the living system is : Oxygen Carbon Nitrogen Hydrogen Oxygen Carbon Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Beta particles Positron Proton Alpha particles Beta particles Positron Proton Alpha particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Setting of plaster of paris involves Hydration to form other hydrates Dehydration process Oxidation process Reduction process Hydration to form other hydrates Dehydration process Oxidation process Reduction process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a soluble salt in H2O CaCl2 CuS PbCl2 Zn(OH)2 CaCl2 CuS PbCl2 Zn(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S ANSWER DOWNLOAD EXAMIANS APP
Chemistry The open "Sigrees" or coal stoves often require fanning to sustain burning because of Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke ANSWER DOWNLOAD EXAMIANS APP
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