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Each question contains STATEMENTS-1 (Ass...

Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason).
Examine the statements carefully and mark the correct answer according to the instructions given below:
STATEMENT-1: An elementry reaction cannot have fractional order.
STATEMETNT-2:Stoichiometric coefficients in an elementary reaction can be fractional.

A

If both the statements are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-1

B

If both the statement are TRUE but STATEMENT-2 is NOT the correct explanation of STATEMENT-1

C

If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE

D

If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements, we will break down the concepts of elementary reactions, order of reactions, and stoichiometric coefficients step by step. ### Step 1: Understanding Elementary Reactions An elementary reaction is a single-step process where reactants convert directly to products. The rate of an elementary reaction is directly proportional to the concentrations of the reactants, raised to the power of their stoichiometric coefficients. **Hint:** Recall that elementary reactions are defined by their simplicity and direct conversion of reactants to products. ### Step 2: Order of Reaction The order of a reaction is defined as the sum of the powers of the concentration terms in the rate law expression. For elementary reactions, the order is equal to the sum of the stoichiometric coefficients of the reactants. **Hint:** Remember that the order of a reaction is always a whole number for elementary reactions because it is derived from the stoichiometric coefficients. ### Step 3: Analyzing Statement 1 **Statement 1:** "An elementary reaction cannot have fractional order." This statement is **true**. Since the order of an elementary reaction is determined by the stoichiometric coefficients, which are whole numbers, the order cannot be fractional. **Hint:** Think about how stoichiometric coefficients are defined in chemical equations. ### Step 4: Analyzing Statement 2 **Statement 2:** "Stoichiometric coefficients in an elementary reaction can be fractional." This statement is **false**. Stoichiometric coefficients are defined as the numbers in front of the reactants and products in a balanced chemical equation, and they must be whole numbers. **Hint:** Consider the definition of stoichiometric coefficients and how they relate to the balanced chemical equation. ### Conclusion Based on the analysis: - **Statement 1** is true. - **Statement 2** is false. Thus, the correct answer is that Statement 1 is true, and Statement 2 is false. ### Final Answer - Statement 1: True - Statement 2: False
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