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Assertion : NaCl solution can be purifie...

Assertion : NaCl solution can be purified by passage of hydrogen chloride through brine.
Reason : This type of purification is based on Le- Chatelier's principle.

A

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

B

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

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

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The correct Answer is:
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step 1: Understanding the Assertion The assertion states that "NaCl solution can be purified by the passage of hydrogen chloride through brine." - **Analysis**: Brine is a concentrated solution of sodium chloride (NaCl). When hydrogen chloride (HCl) gas is passed through this solution, it dissociates into H⁺ and Cl⁻ ions. The presence of Cl⁻ ions from both NaCl and HCl means that we have a common ion situation. ### Step 2: Understanding the Reason The reason states that "This type of purification is based on Le-Chatelier's principle." - **Analysis**: Le-Chatelier's principle states that if a system at equilibrium is disturbed, the system will shift in a direction to counteract the disturbance. In this case, the addition of HCl increases the concentration of Cl⁻ ions in the solution, which affects the equilibrium of the NaCl dissociation. However, the process is more accurately described by the common ion effect rather than Le-Chatelier's principle. ### Step 3: Conclusion - The assertion is true because NaCl can indeed be purified by passing HCl through brine. - The reason is false because the purification process is primarily based on the common ion effect, not directly on Le-Chatelier's principle. ### Final Answer - The assertion is true, and the reason is false. Therefore, the correct option is that the assertion is true and the reason is false. ---
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step 1: Understanding the Assertion The assertion states that "NaCl solution can be purified by the passage of hydrogen chloride through brine." - **Analysis**: Brine is a concentrated solution of sodium chloride (NaCl). When hydrogen chloride (HCl) gas is passed through this solution, it dissociates into H⁺ and Cl⁻ ions. The presence of Cl⁻ ions from both NaCl and HCl means that we have a common ion situation. ### Step 2: Understanding the Reason ...
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