Chemistry The most abundant element in the earth’s atmosphere is Argon Oxygen Nitrogen Krypton Argon Oxygen Nitrogen Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon monoxide Ozone Water vapour Carbon dioxide Carbon monoxide Ozone Water vapour Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Nickel and cadmium Iron and cadmium Lead peroxide and lead Zinc and carbon Nickel and cadmium Iron and cadmium Lead peroxide and lead Zinc and carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to None of these Protons Electrons Neutrons None of these Protons Electrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphuric acid is Tetrabasic Dibasic Tribasic Monobasic Tetrabasic Dibasic Tribasic Monobasic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Mercury Copper Zinc Lead Mercury Copper Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
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