NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Chemistry MCQs (Practice_Test 26 of 31)
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- What is the product nuclide of the decay of thorium-232? Thorium-232 has a half-life of 1.4 × 1010 years and radioactively decays by alpha emission.
- radon-230
- radium-228
- actinium-232
- proactinium-232
- uranium-235
- Calculate the binding energy per nucleon of boron-11 if the atomic mass of boron-11 is 11.00931 amu.
- 3.54 MeV
- 5.67 MeV
- 6.94 MeV
- 7.82 MeV
- 8.23 MeV
- An archeologist unearths a bone sample and wants to know the age of the bone. Her chemist friend determines that 35.6% of the initial amount of carbon-14 is present in the bone sample. If the half-life of carbon-14 is 5730 years, the age of the bone is:
- 3640 years
- 5730 years
- 8540 years
- 10200 years
- 11460 years
- Consider the following types of medical procedures that are used for diagnosing various illnesses:
- PET (Positron Emission Tomography) scans
- CAT (Computerized Axial Tomography) scans
- MRI (Magnetic Resonance Imaging) scans
- Tc bone scans
- Tl cardiac scans