In the experiment in given diagram which of the following groups of gases wer used to simulate primitive atmosphre?

Options

A. `N_(2),H_(2),CH_(4),C_(2)H_(6)`
B. `NH_(3),H_(2)O,CH_(4),H_(2)`
C. `N_(2)O,H_(2)O,NO_(2),SO_(2)`
D. `CH_(4),H_(2)NO_(2),SO_(2)`

Answer

B

Explanation

Stanley Miller in 1953 took an air tight apparatus and circulated four gases -`CH_(4), NH_(3), H_(2)` and water vapour through it. He passed electrical discharges from electrodes at `800^(@)C`. Then he passed the mixture through a condenser. He performed this experiment continuously in this way for a week and analysed the composition of the liquid inside the apparatus. He found a large number of simple organic compounds including some amino acids such as alanine, glycine and aspartic acid. Miller, thus, proved that organic compunds were basis of life.