Zoology - Evolution Question with Solution | TestHub

ZoologyEvolutionOrigin of Universe and LifeEasy2 minPYQ_2020
ZoologyEasysingle choice

In Miller's experiment, He used a mixture of CH4, NH3, H2and water vapour in a closed flask to mimic early earth's conditions. What was the temperature at which this flask was kept?

Options:

Answer:
A
Solution:

Miller sealed in a spark chamber a mixture of water (H2O), methane (CH4), ammonia (NH3) and hyorogen gas (H2). He made arrangement for insertion of two electrodes to provide electrical energy (simulation of lightning) to the spark chamber. CH4, NH3, H2were in 2:1:2 ratio. Electric sparks of 75,000 volts were provided to the mixture. The spark chamber was connected to another flask with arrangement for boiling water at 800oC (provision for evaporation). The other end of the spark chamber was connected to a trap by a tube that passed through a condenser (an arrangement for condensation and collection of aqueous solution, equivalent to rain and Haldane's soup). The trap, in turn, was connected with the flask for boiling water (arrangement for circulation).

Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:EvolutionSubtopic:Origin of Universe and Life
⏱ 2mℹ️ Source: PYQ_2020

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