1.

Given below is a diagrammatic representation of the experimental set-up used by S.L. Miller for his experiment:a. Write the names of different gases contained and the conditions set for the reaction in the flask ‘A’. b. State the type of organic molecule he collected in the water at ‘B’. c. Write the conclusion he arrived at.

Answer»

a. The gases obtained are CH4, H2, NH3 and water vapour. The closed flask, electric discharge was created at 800°C. 

b. Amino acids were collected in the water at ‘B’. 

c. He arrived at the conclusion that life came from pre-existing non-living organic molecules and that formation of life was preceded by chemical evolution.



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