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Question:

The mass number of an atom is:
  1. Number of nucleons in the nucleus
  2. Number of protons in the nucleus
  3. Number of neutrons in the nucleus
  4. None of these






Q2. Who was the inventor of radioactivity?

  1. Madam Curie
  2. Irine Curie
  3. Henery Bacqurel
  4. Rutherford
Correct Answer

Q3. Which one is not the form of Biocides?

  1. Salt
  2. Iodine
  3. Sugar
  4. Bleech
Correct Answer

Q4. The commercial unit of Energy is:

  1. Watt
  2. Watt-hour
  3. Kilowatt-hour
  4. Kilowatt
Correct Answer

Q5. Which of the following are electrovalent compounds?

  1. Copper Sulphate
  2. Calcium Nitrate
  3. Magnesium Oxide
  4. All of the above
Correct Answer

Q6. The planet Neptune was discovered by:

  1. Galley
  2. Galileo
  3. Kepler
  4. Newton
Correct Answer

Q7. Proteins are made up of .......

  1. Sugars
  2. Amino acids
  3. Fatty acids
  4. Nucleic acids
Correct Answer

Q8. Which of the following is an air-borne disease?

  1. Measles
  2. Typhoid
  3. Pink eye
  4. None of the above
Correct Answer

Q9. An electron possesses a negative charge of:

  1. 16 * 10-19 C
  2. 1.60 * 10-19 C
  3. 26 * 10-19 C
  4. 1.8 * 10-19 C
Correct Answer

Q10. The acidic nature and basic nature of some salt solutions can be explained on the basis of:

  1. Splitting of a salt compound
  2. Hydrolysis of salts
  3. Both A and B
  4. Only B
Correct Answer








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