A) Ammonia, methane, hydrogen and water vapour
B) Carbon dioxide, water vapour and methane
C) Ammonia, methane and carbon dioxide
D) Methane, ammonia, water vapour and hydrogen cyanide
Correct Answer: A
Solution :
: Stanley L. Miller and Harold C. Urey conducted an experiment to prove chemical theory of origin of life. They tried to replicate the atmosphere of primitive earth in their laboratory. To do this, they included ammonia, methane and hydrogen in the ratio of \[2:2:1\] and water vapour. In their experiment, they used spark discharge as energy source. This spark simulates lightning. The experiment worked for 18 days, after which condensation was carried out and liquid flask was analysed for the chemical composition. Many simple organic compounds like amino acids were found in it.
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