Science Question Bank
for Exam preparation

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

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

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

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

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

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

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

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

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

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

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

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

Q10. Which of the following is the heaviest metal?

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