Science Question Bank
for Exam preparation

Q2. In which part of the body digestion of protein starts?

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

Q3. Bleaching powder is formed by treating chlorine with.......

1. Calcium Hydroxide
2. Potassium Hydrogen carbonate
3. Magnesium Hydroxide
4. None of the above

Q4. On what does the strength of magnetic field produced by a current carrying solenoid depend?

1. Number of turns in solenoid
2. Strength of current
3. Nature of core material
4. All of the above

Q5. Which of the following device converts chemical energy in to electrical energy?

1. Battery
2. Loud Speaker
3. Solar Cell
4. Electric Motor

Q6. Which of the following is a conductor of electricity?

1. Silver
2. Copper
3. Aluminum
4. All of the above

Q7. What is the SI unit of electric charge?

1. Volt
2. Coulomb
3. Ampere
4. ohm

Q8. The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? I. There are no clouds or water vapour in the lower stratosphere. II. There is no vertical wind in the lower stratosphere Which of the statements given above is/ are correct in this context?

1. I only
2. II only
3. Both I and II
4. Neither I nor II

Q9. 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

Q10. 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