Physical Chemistry (1444 MCQS)

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Chapter No 4 :Nuclear Chemistry (220 MCQ`S)

This chapter include mcqs on Nuclear Chemistry with answers & relevant explanation for the preparation of NEET exams, PSC exams, Nuclear Chemistry Practice Test with answers & relevant explanation, Nuclear Chemistry Important Questions With Answers for the Preparation of public service commission exam

  1. The reactions which involve the rearrangement of extranuclear electrons but the nuclei of the atoms remain unchanged, are called:
    1. chemical reactions
    2. nuclear reactions
    3. fission reactions
    4. fusion reactions
      5. Show Answer
      Answer: A
      Explanation:
      • N/A
  2. In which of the following reactions, the nucleus of the atom is involved:
    1. Decomposition reactions
    2. condensation reactions
    3. fission reactions
    4. all of these
      5. Show Answer
      Answer: C
      Explanation:
      • Fission reaction is an example of nuclear reaction in which nucleus of the atom is involved.
  3. In which of the following reactions, the number of protons and neutrons in the nucleus of the atom changes:
    1. Decomposition reactions
    2. condensation reactions
    3. fusion reactions
    4. all of these
      5. Show Answer
      Answer: C
      Explanation:
      • In nuclear reactions, the number of protons and neutrons changes to form a new element.
  4. The spontaneous breaking of the nuclei of unstable atoms is called:
    1. Decomposition reaction
    2. radioactive decay
    3. fusion reaction
    4. none of these
      5. Show Answer
      Answer: B
      Explanation:
      • N/A
  5. The decay of unstable atoms alongwith the emmision of radiation is known as:
    1. Radioactivity
    2. decomposition
    3. disproportionation
    4. none of these
      5. Show Answer
      Answer: A
      Explanation:
      • N/A
  6. Who first discovered the phenomenon of radioactivity:
    1. Ernest Rutherford
    2. Marie Curie
    3. Henri Becquerel
    4. Pierre Curie
      5. Show Answer
      Answer: C
      Explanation:
      • Henri Becquerel firstly discovered radioactivity in March 1, 1896.
  7. The types of radioactive radiations were sorted out by:
    1. Ernest Rutherford
    2. Marie Curie
    3. Henri Becquerel
    4. Pierre Curie
      5. Show Answer
      Answer: A
      Explanation:
      • N/A
  8. The radioactive radiation which bend towards the positive plate were called:
    1. α-rays
    2. β-rays
    3. γ-rays
    4. none of these
      5. Show Answer
      Answer: B
      Explanation:
      • Beta rays are electrons and carry negative charge thus bend towards the positive plate.
  9. The radioactive radiation which bend towards the negative plate were named:
    1. α-rays
    2. β-rays
    3. γ-rays
    4. none of these
      5. Show Answer
      Answer: A
      Explanation:
      • alpha rays are doubly charged Helium nuclei
  10. The alpha particle has a mass of:
    1. 2 amu
    2. 1 amu
    3. 4 amu
    4. 5 amu
      5. Show Answer
      Answer: C
      Explanation:
      • Alpha particles are Helium nuclei with mass number of 4 amu and charge of +2.

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