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Assertion: Sometimes a white turbidity i...

Assertion: Sometimes a white turbidity is obtained when a solution is prepared in water.
Reason: `Pb^(2+)` catinos are precipitate as `PbCl_(2)` which is sparingly solution in water.

A

If assertion is true but the reason is false

B

If assertion is false but reason is true

C

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

D

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

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states that "Sometimes a white turbidity is obtained when a solution is prepared in water." - **Explanation**: This statement is generally true in the context of certain metal salts that form precipitates when dissolved in water. For example, when certain salts like BiCl3 or SbCl3 are dissolved in water, they can form white precipitates (like BiOCl or SbOCl), leading to turbidity. ### Step 2: Analyze the Reason The reason states that "Pb^(2+) cations are precipitated as PbCl2 which is sparingly soluble in water." - **Explanation**: This statement is also true. Lead(II) chloride (PbCl2) is indeed sparingly soluble in water and can precipitate out of solution, forming a white solid. ### Step 3: Determine the Relationship Between Assertion and Reason Now we need to determine if the reason provided is a correct explanation for the assertion. - **Assertion**: The turbidity is due to the formation of precipitates like BiOCl or SbOCl. - **Reason**: The reason discusses PbCl2, which is not directly related to the turbidity mentioned in the assertion. ### Conclusion Both the assertion and the reason are true statements; however, the reason does not explain the assertion. The turbidity mentioned in the assertion is not due to Pb^(2+) ions but rather due to other metal ions like Bi^(3+) or Sb^(3+). ### Final Answer Thus, the correct option is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states that "Sometimes a white turbidity is obtained when a solution is prepared in water." - **Explanation**: This statement is generally true in the context of certain metal salts that form precipitates when dissolved in water. For example, when certain salts like BiCl3 or SbCl3 are dissolved in water, they can form white precipitates (like BiOCl or SbOCl), leading to turbidity. ### Step 2: Analyze the Reason ...
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