Question

A solution reacts with marble chips to produce a gas which turns lime water milky. The solution contains

1 point

(a) Na2SO4

(b)CaSO4

(c) H2SO4

(d) K2SO4

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Answer 1

Answer:

c is correct answer

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Explanation:

Marble chips contain calcium carbonate (CaCO3), which reacts with sulphuric acid (H2SO4) to form carbon dioxide gas (CO2). Carbon dioxide gas, when passed through lime water [Ca(OH)2], turns it milky.