Question

The artificial atmosphere was created by Oparin-Haldane during his experiment contains

I. Hydrogen gas
II. Oxygen gas
III. Reducing gases

• A. I only
• B. II only
• C. I and II
• D. I and III
• E. II and III

Answer 1

The correct option is D I and III

Oparin simulated primitive earth conditions that contained methane, hydrogen and water vapour. Hydrogen gas served as reducing agent while methane provided hydrocarbon skeleton for synthesis of organic compounds. Water served as medium for chemical synthesis of organic compounds in the glass chamber. Oxygen gas was absent in primitive reducing atmosphere. Thus, the correct answer is option D.