Multiple choice

Which of the following gases is used in the artificial ripening of green fruits?

  1. Acetylene

  2. Ethane

  3. Hydrogen

  4. Carbon dioxide
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A Correct answer
Explanation

Acetylene gas (C2H2) is commonly used for artificial ripening of fruits, especially in developing countries. It acts similarly to ethylene (the natural ripening hormone in fruits). While ethylene is the preferred industrial ripening agent worldwide, acetylene is cheaper and more accessible. The other gases listed (ethane, hydrogen, CO2) do not stimulate fruit ripening.

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