Science Question Bank
for Exam preparation

Science- Q2. Select the correct term related to the phrase- ‘The entire complement of species of organisms, plants and animals, found within a given region’:

1. Community
2. Biotope
3. Biota
4. Biostasy

Science- Q3. What is the work done in moving a unit positive charge from infinity to that point in electric field called?

1. Electric potential
2. Potential difference
3. Electric current
4. Electric circuits

Science- Q4. The cycling at various scales, of minerals and compounds through the ecosystem is:

1. Aboitic (Non-living) Components
2. Biogeochemical Cycles
3. Carbon & Oxygen Cycles
4. Nitrogen Cycles

Science- Q5. Name the salt when dissolved in water give an acidic solution?

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

Science- 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

Science- Q7. Which among the following is not an example of carbohydrate?

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

Science- Q8. Bleaching powder is formed by treating chlorine with.......

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

Science- Q9. The acidic nature and basic nature of some salt solutions can be explained on the basis of:

1. Splitting of a salt compound
2. Hydrolysis of salts
3. Both A and B
4. Only B

Science- Q10. The atomic number of four elements P, Q, R, S are 6, 8, 10 and 12 respectively. The two elements which can react to form ionic compounds are:

1. P and S
2. Q and R
3. P and R
4. Q and S