Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Oxygen Magnesium Silicon Iron Oxygen Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following states maximum iron ore is found ? FeS2 FeCO3 Fe3O4 Fe2O3 FeS2 FeCO3 Fe3O4 Fe2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements exhibits the greatest tendency to lose electrons ? Lithium Zinc Oxygen Fluorine Lithium Zinc Oxygen Fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the purest commercial form of iron ? Steel Wrought iron Stainless steel Pig iron Steel Wrought iron Stainless steel Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry An oxidising agent is a It releases H2 in a chemical reaction An electron acceptor In a chemical reaction its oxidation number increases An electron donor It releases H2 in a chemical reaction An electron acceptor In a chemical reaction its oxidation number increases An electron donor ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has least negative electron gain enthalpy Cl F S P Cl F S P ANSWER DOWNLOAD EXAMIANS APP
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