In the discovery of protein the instrument used... - JAMB Chemistry 2015 Question
In the discovery of protein, the instrument used is
A
cathode ray tube
B
glass tube and discharge tube
C
discharge tube with terminal cathode
D
discharge tube with central cathode
correct option: d
Discharge tube with central cathode is an apparatus for producing cathode rays and positive rays. Option A,B,C will not yield cathode rays and positive rays
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