Science Question Bank
for Exam preparation

Q2. 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

Q3. Which blood vessels have the smallest diameter?

1. Capillaries
2. Arterioles
3. Venules
4. Lymphatic

Q4. Which vitamin is needed to prevent Xero-phthalmia?

1. A
2. B
3. C
4. D

Q5. Atom is electrically:

1. Positive
2. negative
3. bipositive
4. neutral

Q6. 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

Q7. What is Air Quality Index?

1. It tells about the sound pollution
2. It measures air pollution mainly sulphur content in the air.
3. It measures ozone levels in your area.
4. It checks the colour of the air.

Q8. Which of the following is the nearest planet from the Sun?

1. Mercury
2. Venus
3. Earth
4. Mars

Q9. Consider the following statement (s) related to the force of friction I. It is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. II. When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into thermal energy (that is, it onverts work to heat). Which is/are correct statement (s)?

1. Only I
2. Only II
3. Both I & II
4. Neither I nor II

Q10. Which among the following is not an example of carbohydrate?

1. Maltose
2. Fructose
3. Glycogen
4. Glycine