NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice Questions
Question 18

Question.  18

Which of the following substances will not give carbon dioxide on treatment with dilute acid?

(a)

Marble

(b)

Limestone

(c)

Baking soda

(d)

Lime

Detailed Answer with Explanation:

Steps: Marble, limestone (CaCO₃) and baking soda (NaHCO₃) react with dilute acids to give CO₂. Lime (CaO) does not give CO₂ with dilute acid (it forms soluble Ca²⁺ and water). Hence lime.

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