Science Question Bank
for Exam preparation

Science- Q2. Which of the following is the heaviest metal?

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

Science- Q3. A yellow dust appears on the fingers, whenever we touch the middle of a flower. These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life. What is this dust called?

1. Pollen
2. Sperm
3. Spore
4. Sporocyst

Science- Q4. Who is known as the father of Modern Chemistry?

1. Kolvey
2. Wholer
3. Leviatiae
4. Pasteur

Science- Q5. Which of the following compound is not used as an alkali?

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

Science- Q6. Which of the following defense of the human body against bacteria?

1. Hemoglobin
2. Phagocytes
3. Red blood cells
4. Blood platelets

Science- Q7. Who was the inventor of radioactivity?

1. Madam Curie
2. Irine Curie
3. Henery Bacqurel
4. Rutherford

Science- Q8. Substances through which electricity cannot flow are called:

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

Science- Q9. Which of the following are electrovalent compounds?

1. Copper Sulphate
2. Calcium Nitrate
3. Magnesium Oxide
4. All of the above

Science- Q10. 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