Chemistry Which is the purest form of iron? Steel Wrought iron Pig iron Cast iron Steel Wrought iron Pig iron Cast iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the purest form of carbon Coal Iron Graphite Diamond Coal Iron Graphite Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 112 115 118 127 112 115 118 127 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 Lead peroxide and lead Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of an atom is equal to the number of protons the number of protons and electrons the number of nucleons the number of neutrons the number of protons the number of protons and electrons the number of nucleons the number of neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a precious/semi-precious stone? Sapphire Emerald Pearl Ruby Sapphire Emerald Pearl Ruby ANSWER DOWNLOAD EXAMIANS APP
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