Chemistry Silicon is used in Semiconductors All of these Transistors Solar energy devices Semiconductors All of these Transistors Solar energy devices ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of None of these N2 Both A and B O2 None of these N2 Both A and B O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Magnesium Oxygen Silicon Iron Magnesium Oxygen Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore which contains 72% of iron is : Magnetite Haematite Siderite Limonite Magnetite Haematite Siderite Limonite ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.5 mole 0.25 mole 0.2 mole 0.4 mole 0.5 mole 0.25 mole 0.2 mole 0.4 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive halogen Fluorine Chlorine Bromine Iodine Fluorine Chlorine Bromine Iodine ANSWER DOWNLOAD EXAMIANS APP
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