Question

state and explain the for test precence of carbon dioxide​

Answer 1

Answer:

A standard test for the presence of carbon dioxide is its reaction with limewater (a saturated water solution of calcium hydroxide ) to form a milky-white precipitate of calcium hydroxide. Carbon dioxide occurs in nature both free and in combination (e.g., in carbonates ).

Answer 2

Answer:

Lim water

Explanation:

Lime water is Ca(OH) and when CO2 is passed through it, the lime water turns milky.

Ca(OH) + CO2 --> CaCO3 + H2O

But when excess CO2 is passed, the milkiness disappears.

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