Chemistry Which metal is extracted from sea water? Magnesium Beryllium Potassium Aluminium Magnesium Beryllium Potassium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Graphite Phosphorus Sodium Silicon Graphite Phosphorus Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Detergent Phosphate Arsenic Zinc Detergent Phosphate Arsenic Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is most stable at room temperature H2 F2 N2 O2 H2 F2 N2 O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the lowest electronegativity value Francium Radium Chlorine Fluorine Francium Radium Chlorine Fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry If we burn graphite, No residue will be left It will not burn Residue will be left It will change into diamond No residue will be left It will not burn Residue will be left It will change into diamond ANSWER DOWNLOAD EXAMIANS APP
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