Question

1. How will you show the presence of carbon dioxide in air?​

Answer 1

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:

Through Lime water test

Explanation:

• take some freshly prepared lime water in a test tube
• blow air through this lime water

If this lime water turns milky this is the evident that carbon dioxide is present in air.

Hope this helps you....