Science Question Bank
for Exam preparation

Science- 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

Science- 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

Science- 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

Science- 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

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

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

Science- 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

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

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

Science- Q9. Which instrument is used to measure potential difference?

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

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