Nuclear Chemistry MCQs
Nuclear Chemistry MCQs
Try to answer these Nuclear Chemistry MCQs and check your understanding of the Nuclear Chemistry subject. Scroll down and let's begin!
1: ………..are the best bombarding particles.
A. Positrons
B. Electrons
C. Protons
D. Neutrons
2: Which isotope is used for dating archeological finding?
A. 1H3
B. 92U235
C. 8O18
D. 6C14
3: Artificial transmutation can be carried out by particles such as:
A. All
B. Deutrons
C. Neutrons
D. Protons
4: Which one of the following is used as neutron absorber in the nuclear reactor?
A. Cadmium
B. Deuterium
C. Water
D. All
5: Calculate the percentage activity remaining after 4 years, if the half-life of cobalt - 60 is 5.26.
A. 49%
B. 50%
C. 45%
D. 59%
6: Nuclear fusion takes place at:
A. Very high temperature
B. Moderate temperature
C. Low temperature
D. None
7: Relation between mass defect and binding energy is given by:
A. B.E. = Δm x 931 – M
B. B.E. = Δm + 931.
C. B.E. = Δm x 931.
D. B.E. = [m + (A-Z) mn] – M
8: The total charges before and after the reaction is conserved. This relation is given by:
A. Law of conservation of mass and energy
B. Law of conservation of mass number
C. Law of conservation of atomic number
D. None
9: Radioactive disintegration differs from a chemical change in being:
A. Nuclear process
B. A spontaneous process
C. Exothermic change
D. Unimolecular first order reaction
10: When 13Al27is bombarded with a- particles a radioactive isotope of phosphorus 15P30 is formed with the emission of:
A. Neutrons
B. Positrons
C. Protons
D. Electrons
11: Find the number of necleons present, if the binding energy of an element is 64 MeV. Given BE / Nucleon = 6.4.
A. 10
B. 16
C. 6
D. 64
12: Find the rate of disintegration of 0.001g of a sample of Ra226 if half-life period is 1620 years.
A. 3.28 x 10-8 g per year
B. 4.28 x 10-8 g per year.
C. 3.28 x 10-7 g per year
D. 4.28 x 10-7 g per year.
13: A radioactive isotope decays at such a rate that after 96 mins only 1/8th of the original amount remains. The value of t 1/2 of this nuclide is:
A. 32 min
B. 12 min
C. 48 min
D. 25 min
14: Among the following, which Uranium is the most reactive?
A. 248U
B. 226U
C. 238U
D. 235U
15: The role of heavy water in a nuclear reactor is:
A. As a moderator
B. As a moderator And As a coolant
C. None
D. As a coolant
16: The speed of a chemical reaction is not affected by:
A. Volume
B. Pressure
C. Catalyst
D. Temperature
17: ………….does not contain material particles.
A. γ– rays.
B. A– rays.
C. ß– rays.
D. Anode rays
18: Atoms of different elements containing the same number of neutrons but different number of total nucleons is known as:
A. Isodiaphers
B. Isotopes
C. Isosterism
D. Isotones
19: Co60 is used in the treatment of:
A. Pneumonia
B. Cancer
C. Leukaemia
D. All
20: The phenomenon of radioactivity was discovered by:
A. Madam Curie
B. Pierre Curie
C. Henry Becquerel
D. Rutherford
21: A nuclear change involves a change in _____.
A. An atom
B. Plasma
C. Fission
D. Radiation
E. Fusion
22: An element that undergoes radioactive decay becomes _________.
A. An entirely different element
B. An ion
C. A less energetic element of the same identity
D. Either an alpha or beta particle
23: An ongoing series of fission reactions is called a (n) _____.
A. Chain reaction
B. Nuclear reaction
C. Fission reactions
D. None of these
24: A nuclear change involves a change in _____.
A. An atom
B. A molecule
C. A compound
D. An electron
25: A sample of ch4o with a mass of 32.0 g contains __________ molecules of ch4o.
A. 6.02 × 10^23
B. 4.4 × 10^23
C. 1.46 × 10^-10
D. 1.33 × 10^-18
26: An unstable nucleus ____.
A. Emits energy as it decays.
B. Film badge
C. Ionizing radiation
D. Beta particl
27: Radioisotopes taken internally for medical reasons ____.
A. Should have a short-half life
B. Film badge
C. By emitting a beta particle
D. Soft tissue
28: A transmutation reaction must always involve a(n) ____.
A. Fission
B. Change in the number of protons in a nucleus of an atom
C. Alpha radiation
D. All of this
29: Decaying uranium atoms in earths crust result in _____.
A. U-235
B. Explosions
C. High-level waste
D. Radon gas
List of Nuclear Chemistry MCQs...
Available in:
Nuclear Chemistry MCQs
