Question

Fehling’s solution ‘A’ is

• A. aqueous copper sulphate
• B. alkaline copper sulphate
• C. alkaline solution of sodium potassium tartrate (Rochelle’s salt)
• D. aqueous sodium citrate

Answer 1

The Correct Option is A

Step 1: Understanding Fehling's Solution

Fehling's test is used to detect reducing sugars.

Step 2: Composition of Fehling's Solution

Fehling's solution consists of two parts:

• Solution A: Copper sulfate (\( CuSO_4 \)) in water.
• Solution B: Alkaline sodium potassium tartrate (also called Rochelle's salt, \( NaKC_4H_4O_6 \)).

Step 3: Identifying the Correct Answer

Fehling's solution A contains aqueous copper sulfate, making option 4 correct.

Conclusion

The correct answer is Option 1.