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Discovery of Proton Questions and Answers PDF Download eBook
MCQ: The positive rays are produced by
- molecules
- gas atoms
- solids
- liquids
B
MCQ: The angles between the lengths in the tetragonal system are
- 60 °
- 90 °
- 50 °
- 40 °
B
MCQ: In the period from left to right the ionization energy is
- increase
- decrease
- remain same
- diminishes
A
MCQ: Another name for orbital is
- electron
- electronic cloud
- energy
- proton cloud
B
MCQ: The Balmer series has the limiting line in
- ultra violet region
- infrared region
- visible region
- radio waves region
A