Science Question Bank
for Exam preparation

Q2. Atom is electrically:

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

Q3. 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

Q4. In which part of the body digestion of protein starts?

1. Mouth
2. Stomach
3. Duodenum
4. Intestine

Q5. Name the salt whose aqueous solution will have no effect on either red litmus or blue litmus?

1. Potassium Sulphate
2. Sodium Chloride
3. Sodium Carbonate
4. Ammonium Sulphate

Q6. The planet Neptune was discovered by:

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

Q7. Which of the following has the highest protein content per gram?

1. Groundnut
2. Soyabean
3. Apple
4. Wheat

Q8. Substances through which electricity cannot flow are called:

1. Conductors
2. Insulators
3. Wires
4. Battery

Q9. Which of the following statement is true about ionic compounds?

1. Ionic compounds conduct electricity when dissolved in water.
2. Ionic compounds are not soluble in water.
3. Ionic compounds are crystalline solids.
4. Only A and C

Q10. 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