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Chemistry
Radioactivity and Nuclear Chemistry
Previous Years Questions

MCQ (Single Correct Answer)

If in case of a radio isotope the value of half-life (T$$_{1/2}$$) and decay constant ($$\lambda$$) are identical in magnitude, then their value shoul...
For the reaction $$_7^{14}N(\alpha ,p)\,{}^{17}O$$, 1.16 MeV (Mass equivalent = 0.00124 amu) of energy is absorbed. Mass on the reactant side is 18.00...
The half-life period of $${}_{53}{I^{125}}$$ is 60 days. The radioactivity after 180 days will be
Consider, the radioactive disintegration $${}_{82}{A^{210}}\buildrel {} \over \longrightarrow B\buildrel {} \over \longrightarrow C\buildrel {} \ove...
Which atomic species cannot be used as a nuclear fuel?
The half-life of C14 is 5760 years. For a 200 mg sample of C14, the time taken to change to 25 mg is
The nucleus $$_{29}^{64}$$Cu accepts an orbital electron to yield,
C6H5F18 is a F18 radio-isotope labelled organic compound. F18 decays by positron emission. The product resulting on decay is ...
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