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This set of MCQs helps you brush up on important chemistry topics and prepare you to dive into skill practice.
Another name for alpha radiation is what?
Hydrogen nucleus
Helium 4 nucleus
Fast moving electron
None of these
Another name for a beta particle is what?
Helium-4 nucleus
Fast moving electron
Hydrogen Nucleus
Fast moving neutron
True or false? Gamma rays have mass.
True
False
Refer to the image. Look at problem 1. Which type of radiation is X?
Beta radiation
Omega radiation
Alpha radiation
Gamma radiation
What is the name of the isotope that is produced from the decay of radium-226?
Radium-222
Radon-222
Radon-232
Radium-86
Which of the following does not characterize X-rays?
Have wavelengths shorter than ultraviolet rays
It causes ZnS to fluorescence
The radiation can ionise gases
Deflected by electric and magnetic field
A freshly prepared radioactive source of half-life 2 hours emits radiations of intensity which is 64 times the permissible safe level. The minimum time after which it would be possible to work safely with this source is,
100 hours
12 hours
18 hours
128 hours
Starting from radium, the radioactive disintegration process terminates when the following is obtained.
Radium B
Radium A
Radon
Lead
