Science Question Bank
for Exam preparation

Q2. Substances through which electricity cannot flow are called:

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

Q3. Which of the following is a large blood vessel that carries blood away from the heart?

1. Vein
2. Artery
3. Capillary
4. Nerve

Q4. The heating elements of electric iron and toaster are made of:

1. Metals
2. Alloys
3. Glass
4. Hard rubber

Q5. What should be present in a substance to make it a conductor of electricity?

1. Strongly held electrons
2. Strongly held protons
3. Free electrons
4. Free protons

Q6. Name a gas used as rocket propellant and in welding also?

1. Ether
2. Neon
3. Hydrogen
4. Cyanogen

Q7. Joule is a unit of:

1. Work
2. Power
3. Momentum
4. None of the above

Q8. 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

Q9. Which of the following is an air-borne disease?

1. Measles
2. Typhoid
3. Pink eye
4. None of the above

Q10. Which of the following is the unit of radioactivity?

1. Curie
2. Becquerel
3. Rutherford
4. All of these