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Science Question Bank
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Science - Question 1:

Name a gas which is used in refrigeration and in fire extinguisher?

  1. Nitrogen
  2. Hydrogen
  3. Carbon Dioxide
  4. Methane





Science- Q2. Who among the following Scientist is associated with the invention of the refrigerator?

  1. G. Brousa
  2. Harison & Kaitlin
  3. William Gas Cogin
  4. Einstein
Correct Answer

Science- Q3. Consider the following statement (s) about frequency I. It is describes as the number of waves that pass a fixed place in a given amount of time. II. It is measured in the hertz unit, named in honour of the 19th-century German physicist Heinrich Rudolf Hertz. Which is/are correct statement (s)?

  1. Only I
  2. Only II
  3. Both I & II
  4. All of the above
Correct Answer

Science- Q4. Which one of the following is not correctly matched?

  1. Tuberculosis: Lungs
  2. Filaria: Lymph nodes
  3. Encephalitis: Heart
  4. Leukaemia: Blood cells
Correct Answer

Science- Q5. Name the acid that is secreted in the stomach?

  1. HCl
  2. H2S04
  3. H2C03
  4. HNO3
Correct Answer

Science- Q6. Which of the following compound is not used as an alkali?

  1. Sodium hydroxide
  2. Potassium hydroxide
  3. Carbon hydroxide
  4. Nitrogen hydroxide
Correct Answer

Science- Q7. Mention the source of Liver, milk, egg yolk, fish liver oil?

  1. Vitamin A
  2. Vitamin B2
  3. Vitamin D
  4. Vitamin C
Correct Answer

Science- Q8. The sky appears black from the moon because of:

  1. Lack of atmosphere
  2. Lack of cloud
  3. Lack of oxygen and CO2
  4. None of these
Correct Answer

Science- Q9. What are the two major processes of evolution of species?

  1. Migration and adoptation
  2. Process of selection
  3. Process of isolation
  4. Both B & C
Correct Answer

Science- Q10. Which of the following is the heaviest metal?

  1. osmium
  2. mercury
  3. iron
  4. nickel
Correct Answer








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