Here’s an easy Chemistry General Knowledge Questions and Answers. Each question is followed by multiple-choice options and the correct answer.
Absolutely! Here are 20 more Chemistry General Knowledge Questions and Answers to expand your quiz. These questions are designed to be engaging, educational, and optimized for the keyword “chemistry general knowledge questions and answers.”
for Chemistry General Knowledge Questions and Answers (Part 1)
Chemistry General Knowledge Questions and Answers (Part 2)
Question 31: What is the chemical symbol for lead?
A) Ld
B) Pb
C) Le
D) Pd
Answer: B) Pb
(Lead’s symbol is Pb, derived from the Latin word “Plumbum.”)
Question 32: Which element is used in making computer chips?
A) Silicon
B) Carbon
C) Gold
D) Aluminum
Answer: A) Silicon
(Silicon is a key component in semiconductors and computer chips.)
Question 33: What is the chemical formula for ammonia?
A) NH₃
B) NH₄
C) NO₂
D) N₂O
Answer: A) NH₃
(Ammonia is a compound of nitrogen and hydrogen with the formula NH₃.)
Question 34: Which gas is used in fire extinguishers?
A) Oxygen
B) Carbon Dioxide
C) Nitrogen
D) Helium
Answer: B) Carbon Dioxide
(Carbon dioxide is used in fire extinguishers to smother flames.)
Question 35: What is the chemical symbol for tin?
A) Ti
B) Sn
C) Tn
D) Si
Answer: B) Sn
(Tin’s symbol is Sn, derived from the Latin word “Stannum.”)
Question 36: Which element is the primary component of coal?
A) Oxygen
B) Carbon
C) Hydrogen
D) Sulfur
Answer: B) Carbon
(Coal is primarily composed of carbon, along with other elements like hydrogen and sulfur.)
Question 37: What is the chemical formula for methane?
A) CH₄
B) CO₂
C) C₂H₆
D) H₂O
Answer: A) CH₄
(Methane is the simplest hydrocarbon with the formula CH₄.)
Question 38: Which element is used in fluorescent bulbs?
A) Neon
B) Argon
C) Mercury
D) Krypton
Answer: C) Mercury
(Mercury vapor is used in fluorescent bulbs to produce light.)
Question 39: What is the chemical symbol for copper?
A) Co
B) Cu
C) Cp
D) Cr
Answer: B) Cu
(Copper’s symbol is Cu, derived from the Latin word “Cuprum.”)
Question 40: Which gas is known as “marsh gas”?
A) Methane
B) Ethane
C) Propane
D) Butane
Answer: A) Methane
(Methane is often called marsh gas because it is produced in wetlands.)
Question 41: What is the chemical formula for hydrogen peroxide?
A) H₂O
B) H₂O₂
C) HO
D) H₃O
Answer: B) H₂O₂
(Hydrogen peroxide is a common antiseptic with the formula H₂O₂.)
Question 42: Which element is used in nuclear reactors as a fuel?
A) Uranium
B) Plutonium
C) Thorium
D) All of the above
Answer: D) All of the above
(Uranium, plutonium, and thorium are all used as nuclear fuels.)
Question 43: What is the chemical symbol for sulfur?
A) Su
B) S
C) Sl
D) Sr
Answer: B) S
(Sulfur’s symbol is S, derived from its Latin name “Sulfur.”)
Question 44: Which gas is used in welding?
A) Oxygen
B) Acetylene
C) Nitrogen
D) Helium
Answer: B) Acetylene
(Acetylene is commonly used in welding due to its high flame temperature.)
Question 45: What is the chemical formula for carbon monoxide?
A) CO
B) CO₂
C) C₂O
D) CH₄
Answer: A) CO
(Carbon monoxide is a toxic gas with the formula CO.)
Question 46: Which element is the most abundant in the Earth’s crust?
A) Oxygen
B) Silicon
C) Aluminum
D) Iron
Answer: A) Oxygen
(Oxygen makes up about 46% of the Earth’s crust by weight.)
Question 47: What is the chemical symbol for phosphorus?
A) Ph
B) P
C) Ps
D) Po
Answer: B) P
(Phosphorus’s symbol is P, derived from its Latin name “Phosphorus.”)
Question 48: Which gas is used in refrigerators and air conditioners?
A) Ammonia
B) Freon
C) Carbon Dioxide
D) Nitrogen
Answer: B) Freon
(Freon is a common refrigerant used in cooling systems.)
Question 49: What is the chemical formula for nitric acid?
A) HCl
B) H₂SO₄
C) HNO₃
D) H₃PO₄
Answer: C) HNO₃
(Nitric acid is a strong acid with the formula HNO₃.)
Question 50: Which element is used in making matches?
A) Sulfur
B) Phosphorus
C) Carbon
D) Sodium
Answer: B) Phosphorus
(Phosphorus is a key component in the striking surface of matches.)
This extended quiz provides a comprehensive set of Chemistry General Knowledge Questions and Answers, perfect for students, educators, and trivia enthusiasts.
