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

Answer: (A)

aqueous copper sulphate

Answer 2

1. Fehling's solution is a mixture of Fehling's solution A (aqueous copper sulfate) and Fehling's solution B (alkaline potassium sodium tartrate).
2. It is used for testing aldehydes, which reduce $Cu^{2+}$ to $Cu_2O$.