NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice QuestionsQuestion 5
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice Questions
Question. 5
Sodium carbonate is a basic salt because it is a salt of
(a)
strong acid and strong base
(b)
weak acid and weak base
(c)
strong acid and weak base
(d)
weak acid and strong base
Detailed Answer with Explanation:
Steps: Na₂CO₃ is from strong base (NaOH) and weak acid (H₂CO₃). Salts of strong base + weak acid are basic because CO₃²⁻ hydrolyses producing OH⁻.