How Science Is Unlocking Secrets

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Question 1: Which of the following is the SI unit of force?

A) Newton

B) Joule

C) Watt

D) Pascal

Question 2:What is the formula of methane?

A) CH4

B) C2H6

C) C3H8

D) CH3OH

Question 3:Which of the following is a non-metal that is a good conductor of electricity?

A) Graphite

B) Sulfur

C) Chlorine

D) Oxygen

Question 4: The process of converting a liquid into gas is called:

A) Sublimation

B) Condensation

C) Evaporation

D) Freezing

Question 5: What is the chemical formula of sodium hydroxide?

A) NaCl

B) NaOH

C) Na2SO4

D) Na2O

Question 6:The gas which is evolved when an acid reacts with a metal is:

A) Oxygen

B) Nitrogen

C) Hydrogen

D) Carbon dioxide

Question 7:Which of the following is a vector quantity?

A) Speed

B) Distance

C) Force

D) Energy

Question 8: What is pH of a neutral solution?

A) 0

B)7

C) 14

D) 3

Question 9: In the periodic table, elements are arranged in order of their:

A) Atomic mass

B) Atomic number

C) Density

D) Valency

Question 10: The phenomenon of light bending as it passes from one medium to another is called:

A) Reflection

B) Refraction

C) Diffraction

D) Dispersion

Question 11: What is the unit of electric current?

A) Volt

B) Watt

C) Ampere

D) Ohm

Question 12: Which of the following is not a function of the human skeleton?

A) Protection

B) Movement

C) Heat production

D) Blood cell formation

Question 13: The energy stored in food is an example of which type of energy?

A) Mechanical energy

B) Chemical energy

C) Electrical Energy

D) Thermal energy

Question 14: The primary function of the human circulatory system is to:

A) Digest food

B) Transport gases

C) Produce hormones

D) Transport blood and nutrients

Question 15: What is the primary cause of ocean tides?

A) The Moon's gravitational pull

B) The Sun's gravitational pull

C) Wind currents

D) Earth's rotation

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Total Questions Attempted: 0

Correct Answers: 0

Wrong Answers: 0

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