Which of the given molecules were utilized in the Miller’s experiment?
A. CH4
B. H2S
C. NH3
D. N2
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A and C only
In 1953, S.L. Miller tested the idea that the first organic molecules formed from simple inorganic ones on the early earth. In a closed flask he took CH4, H2, NH3 and water vapour at 800°C and passed an electric discharge through them. After some time he found amino acids in the flask.
(A) CH4 — Correct. Methane was one of the gases used.
(B) H2S — Incorrect. Hydrogen sulphide was not in the flask.
(C) NH3 — Correct. Ammonia was used; it supplied the nitrogen of the amino acids.
(D) N2 — Incorrect. Nitrogen gas was not used. The nitrogen came from ammonia.
NCERT Extract:
Origin of Life – …
