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Assertion : The aqueous solution of CuSO...

Assertion : The aqueous solution of `CuSO_4` is acidic in nature.
Reason : Copper sulphate is a salt of a weak base and a strong acid.

A

If both Assertion and Reason are CORRECT and Reason is the CORRECT explanations of the Assertion

B

If both Assertion and Reason are CORRECT but Reaon is not CORRECT explanation of the Assertion.

C

If Assertion is CORRECT but Reasson is INCORRECT.

D

If Assertion is INCORRECT but Reason is CORRECT.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the assertion and reasoning question regarding the nature of the aqueous solution of CuSO4, we will follow these steps: ### Step 1: Understand the Assertion The assertion states that the aqueous solution of CuSO4 is acidic in nature. We need to determine if this statement is true. ### Step 2: Analyze the Composition of CuSO4 Copper sulfate (CuSO4) is a salt formed from the reaction of a weak base (copper hydroxide, Cu(OH)2) and a strong acid (sulfuric acid, H2SO4). ### Step 3: Conduct Salt Hydrolysis When CuSO4 is dissolved in water, it undergoes hydrolysis. The dissociation can be represented as: \[ \text{CuSO}_4 \rightarrow \text{Cu}^{2+} + \text{SO}_4^{2-} \] ### Step 4: Determine the Nature of the Ions - The sulfate ion (SO4^2-) comes from a strong acid (H2SO4) and does not significantly affect the pH of the solution. - The copper ion (Cu^2+) comes from a weak base (Cu(OH)2) and can hydrolyze to produce H+ ions, which contributes to the acidity of the solution. ### Step 5: Conclude the Nature of the Solution Since the Cu^2+ ion can release H+ ions upon hydrolysis, the overall effect is that the solution becomes acidic. Therefore, the assertion is correct. ### Step 6: Analyze the Reason The reason states that copper sulfate is a salt of a weak base and a strong acid. This is true, as we have established that CuSO4 is derived from the weak base Cu(OH)2 and the strong acid H2SO4. ### Step 7: Determine the Relationship Between Assertion and Reason Both the assertion and the reason are correct, and the reason provides a correct explanation for the assertion. ### Final Conclusion Both the assertion and the reason are correct, and the reason is a correct explanation of the assertion. ### Answer The correct option is: Both assertion and reason are correct, and the reason is the correct explanation of the assertion. ---
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Knowledge Check

  • Assertion: The pH of a buffer solution does not change appreciably on additions of a small amount of an acid or a base. Reason: A buffer solution consists of either a weak acid and its salt with a strong base or a weak base its salt with a strong acid.

    A
    If both Assertion and Reason are CORRECT and a Reason is the CORRECT explanations of the Assertion
    B
    If both Assertion and Reason are CORRECT but Reaon is not CORRECT explanation of the Assertion.
    C
    If Assertion is CORRECT but Reasson is INCORRECT.
    D
    If Assertion is INCORRECT but Reason is CORRECT.

  • An aqueous solution of a salt has basic nature. What are the types of acid and base from which this salt is formed?

    A
    Weak acid and weak base
    B
    Strong acid and strong base
    C
    Strong acid and weak base
    D
    Weak acid and strong base

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