When reactants and products are being formed at an equal rate in a chemical reaction, the . a. reaction is endergonic b. free energy is zero c. free energy is negative d. reaction is exergonic e. free energy is positive

The answer is option b "free energy is zero"

Explanation

The reaction that has negative free energy are called exergonic reactions that means the reactants have more free energy than the product formed.The reaction that has positive free energy are called endergonic reactions that means the final state or the products formed have more free energy than the initial state or the reactants.The reaction that has zero free energy occurs when the free energy of both reactants and the products are same hence the rate of formation of products and reactants are equal.Therefore, when reactants and products are being formed at an equal rate the free energy is zero.

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Answer(d) unstable compounds that convert to acetals in the presence of alcohol and an acid; (b) semiacetals produced by alcohol subtraction from ketone;