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Assertion: As mole is the basic chemical...

Assertion: As mole is the basic chemical unit, the concentration of the dissolved solute is usually specified in terms of number of moles of solute.
Reason: The total number of molecules of reactants involved ina balanced chemical equation is known as molecularity of the reaction.

A

If both the assertion and reason are true statement and reason is correct explanation of the assertion .

B

If both the assertion and reason are true statement but reason is not a correct explanation of the assertion .

C

If the assertion is true but the reason is a false statement.

D

If both assertion and reason are false statements.

Text Solution

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The correct Answer is:
To solve the question, we need to analyze the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that "As mole is the basic chemical unit, the concentration of the dissolved solute is usually specified in terms of number of moles of solute." - **Explanation**: The mole is indeed a fundamental unit in chemistry used to express amounts of a chemical substance. Concentration, often expressed as molarity (M), is defined as the number of moles of solute divided by the volume of the solution in liters. Therefore, this assertion is correct. ### Step 2: Understand the Reason The reason states that "The total number of molecules of reactants involved in a balanced chemical equation is known as molecularity of the reaction." - **Explanation**: Molecularity refers to the number of reactant molecules that collide to produce a reaction. For example, in a reaction where two molecules of A react with one molecule of B, the molecularity is 3 (2 from A and 1 from B). This statement about molecularity is also correct. ### Step 3: Analyze the Relationship Between Assertion and Reason Now we need to determine whether the reason provided is a correct explanation of the assertion. - While both statements are true, the reason does not explain why concentration is specified in terms of moles. The assertion is about how concentration is measured, while the reason discusses molecularity, which is a different concept. ### Conclusion Both the assertion and the reason are true statements, but the reason does not correctly explain the assertion. Therefore, the correct answer is that both are true, but the reason is not a correct explanation of the assertion. ### Final Answer The correct option is: Both assertion and reason are true statements, but reason is not a correct explanation of assertion. ---
To solve the question, we need to analyze the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that "As mole is the basic chemical unit, the concentration of the dissolved solute is usually specified in terms of number of moles of solute." - **Explanation**: The mole is indeed a fundamental unit in chemistry used to express amounts of a chemical substance. Concentration, often expressed as molarity (M), is defined as the number of moles of solute divided by the volume of the solution in liters. Therefore, this assertion is correct. ### Step 2: Understand the Reason ...
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