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Assertion: concentrated solution of BiCl...

Assertion: concentrated solution of `BiCl_(3)` can be hydrolysed with water.
Reason: `BiCl_(3)` does not change in composition with dilution.

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 a concentrated solution of BiCl₃ can be hydrolyzed with water. - **Hydrolysis of BiCl₃**: When bismuth chloride (BiCl₃) is mixed with water, it undergoes hydrolysis. The reaction can be represented as: \[ \text{BiCl}_3 + \text{H}_2\text{O} \rightarrow \text{BiOCl} + 2\text{HCl} \] - **Conclusion**: This reaction indicates that BiCl₃ can indeed be hydrolyzed in a concentrated solution, forming bismuth oxychloride (BiOCl) and hydrochloric acid (HCl). Thus, the assertion is **true**. ### Step 2: Analyze the Reason The reason states that BiCl₃ does not change in composition with dilution. - **Composition Change**: When BiCl₃ undergoes hydrolysis, it changes from BiCl₃ to BiOCl, which is a different compound. This indicates a change in composition. Therefore, the statement that BiCl₃ does not change in composition with dilution is **false**. ### Step 3: Conclusion - The assertion is true: concentrated BiCl₃ can be hydrolyzed with water. - The reason is false: BiCl₃ does change in composition upon hydrolysis. ### Final Answer The correct option is that the assertion is true, but the reason is false. ---
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