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STATEMENT-1: Molar conductivity increase...

STATEMENT-1: Molar conductivity increases with decrease in concentration for weak electrolysis.
STATEMENT-2: No. of ions increases and no. of ions per unit volume decreases due to dilution.

A

If both the statements are TRUE and STATEMENTS-2 is the correct explantion of STATEMENTS-12

B

If both the statements are TRUE but STATEMENTS-2 is NOT the correct explanation of STATEMENTS-14

C

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

D

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

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements and determine their correctness and whether statement 2 serves as a correct explanation for statement 1. ### Step-by-Step Solution: 1. **Understanding Molar Conductivity**: - Molar conductivity (Λ) is defined as the conductivity (K) of the solution multiplied by 1000 and divided by the molarity (C) of the solution. - Formula: \( \Lambda = \frac{K \times 1000}{C} \) 2. **Analyzing Statement 1**: - Statement 1 claims that molar conductivity increases with a decrease in concentration for weak electrolytes. - When a solution is diluted (i.e., concentration decreases), the number of ions in the solution increases because the weak electrolyte dissociates more as the concentration decreases. 3. **Analyzing Statement 2**: - Statement 2 states that the number of ions increases while the number of ions per unit volume decreases due to dilution. - As the solution is diluted, the total number of ions present in the solution increases, but since the volume of the solution also increases, the concentration (number of ions per unit volume) decreases. 4. **Connecting the Statements**: - The increase in the total number of ions contributes to the increase in molar conductivity, while the decrease in concentration (number of ions per unit volume) leads to the increase in molar conductivity as well. - Therefore, both statements are correct and statement 2 correctly explains statement 1. 5. **Conclusion**: - Both statements are true, and statement 2 is the correct explanation for statement 1. ### Final Answer: Both Statement 1 and Statement 2 are true, and Statement 2 is the correct explanation for Statement 1. ---
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