EASY
Earn 100

What is the unit of nuclear mass?

Important Questions on Nuclear chemistry and radioactivity

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Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
The curve of binding energy per nucleon as a function of atomic mass number has a sharp peak for helium nucleus. This implies that helium,
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Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability

The question contains Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements.

Statement 1: Energy is released, when heavy nuclei undergo fission or light nuclei undergo fusion.
Statement 2: For heavy nuclei, the binding energy per nucleon increases with increasing Z, while for light nuclei, it decreases with increasing Z.

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Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
The mass defect of the nuclear reaction B85→4Be8+1e0 is Δm. The wrong expression is/are
HARD
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability

Assume that the nuclear binding energy per nucleon (B/A) versus mass number (A) is as shown in the figure. Use this plot to choose the correct choice given below.

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Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Two lithium nuclei in a lithium vapour at room temperature do not combine to form a carbon nucleus because
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
The mass defect of the nuclear reaction B85→4Be8+1e0 is Δm. The wrong expression is/are
HARD
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability

Binding energy per nucleon verses mass number curve for nuclei is shown in the figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release the energy is,

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EASY
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Mass of 1 amu gives energy equal to
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
The curve of binding energy per nucleon as a function of an atomic mass number has a sharp peak for the helium nucleus. This implies that helium
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Which of the following statements are correct?
HARD
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
If the binding energies of a deuteron and an alpha particle are 1.125MeV and 7.2MeV, respectively , then the more stable of the two is
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Following data is available about 3 nuclei P, Q & R. Their decreasing order of stability is given by
Element P Q R
Atomic mass number A 10 5 6
Binding energy (MeV) 100 60 66
EASY
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Mass of 1 amu gives energy equal to
HARD
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Assuming that about 200 MeV of energy is released per fission of U92235 nuclei, then the mass of U 235 consumed per day in a fission reactor of power 1 megawatt will be approximately.
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Which of the following statements are correct?
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
The mass defect of the nuclear reaction B85→4Be8+1e0 is Δm. The wrong expression is/are
HARD
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Which of the following elements have binding energy per nucleon less than 7?
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Which of the following statements are correct?
MEDIUM
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
Which of the following statements are correct?
EASY
Chemistry>Physical Chemistry>Nuclear chemistry and radioactivity>Factors governing nuclear stability
In the nuclear process, C611→B511+β++X, X stands for _______