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FAQs on STOICHIOMETRY AND REDOX REACTIONS - Additional Documents & Tests for IIT JAM

1. What is stoichiometry and how is it related to redox reactions in the IIT JAM exam?
Ans. Stoichiometry is the calculation of the quantities of reactants and products involved in a chemical reaction based on the balanced chemical equation. In redox reactions, which involve the transfer of electrons, stoichiometry helps determine the ratios of oxidizing and reducing agents, as well as the stoichiometric coefficients of the species involved.
2. How can stoichiometry be applied to redox reactions in the IIT JAM exam?
Ans. In redox reactions, stoichiometry is used to determine the amount of one substance needed to react completely with another substance based on their respective oxidation states. This information helps in calculating the limiting reagent, theoretical yield, and percent yield of the reaction, which are important concepts in stoichiometry.
3. What are some common redox reactions that can be solved using stoichiometry in the IIT JAM exam?
Ans. Common redox reactions that can be solved using stoichiometry in the IIT JAM exam include the combustion of fuels, such as hydrocarbons, the oxidation of metals, the reduction of metal ions, and the reactions involving oxidizing and reducing agents like permanganate and dichromate ions.
4. How can redox reactions be balanced using stoichiometry in the IIT JAM exam?
Ans. To balance redox reactions using stoichiometry, the oxidation numbers of the species involved are assigned and compared before and after the reaction. The number of electrons transferred is then balanced by multiplying the half-reactions by appropriate stoichiometric coefficients. Finally, the balanced half-reactions are combined to obtain the balanced overall redox equation.
5. How does understanding stoichiometry and redox reactions help in solving numerical problems in the IIT JAM exam?
Ans. Understanding stoichiometry and redox reactions enables students to accurately calculate the quantities of reactants and products involved in a chemical reaction. This knowledge is crucial for solving numerical problems related to percent yield, theoretical yield, and determining the limiting reagent, which are common types of questions asked in the IIT JAM exam.
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