Science Question Bank
for Exam preparation

Q2. What is an ionic bond?

1. Ionic bond is formed by sharing of electrons between two atoms.
2. It is a bond formed by the transfer of electrons from one atom to another.
3. Both A and B are correct
4. None of the above

Q3. ------------- play a vital role of releasing essential materials from the dead matter and thus maintain a continuous cycle of energy flow and of material.

1. Saprophytes
2. Autotrophs
3. Hetrotrophs
4. None of the above/ More than the above

Q4. Soap consists of:

1. Sodium salt with fatty acids.
2. Potassium salt with fatty acids
3. Both a & b
4. Sodium and Potassium salt mixed with chemicals

Q5. Climate represents……

1. The long-term average weather and its statistical variation for a given region
2. Weather averaged over a year
3. It is a measure of variations in the amount of precipitation
4. None of the above

Q6. Which one of the following is not correctly matched?

1. Haemoglobin: Skin
2. Vitamin C: Scurvy
3. Carbohydrate: Potato
4. Fat: Butter

Q7. 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

Q8. Hepatitis is a general term for a disease that is caused by:

1. Viruses
2. Bacteria
3. Parasites
4. All the above

Q9. Which instrument is used to measure potential difference?

1. Galvanometer
2. Magnetometer
3. Voltmeter
4. Ammeter

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