Which of the following substances will not produce carbon dioxide gas on reacting with sulphuric acid?

(a) Baking soda
(b) Zinc granules
(c) Soda ash

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

The metal which will not produce hydrogen gas on reacting with dilute sulphuric acid is :

(a) sodium

(b) silver

(c) iron

(d) zinc