SS3 First Term Chemistry Past Questions And Answers
Here are 20 SS3 first term Chemistry questions with options and answers:
Question: What is the chemical symbol for gold?
A) Au
B) Ag
C) Fe
D) Cu
Answer: A) Au
Question: Which gas is most abundant in Earth’s atmosphere?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) Argon
Answer: A) Nitrogen
Question: What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-8 M?
A) 6
B) 7
C) 8
D) 9
Answer: C) 8
Question: Which element has the chemical symbol Na?
A) Nickel
B) Sodium
C) Nitrogen
D) Neon
Answer: B) Sodium
Question: What is the chemical formula for water?
A) CO2
B) H2O
C) CH4
D) O2
Answer: B) H2O
Question: Which of the following is a noble gas?
A) Helium
B) Chlorine
C) Sulfur
D) Fluorine
Answer: A) Helium
Question: What is the chemical symbol for iron?
A) Fe
B) I
C) In
D) Ir
Answer: A) Fe
Question: What is the atomic number of carbon?
A) 5
B) 6
C) 7
D) 8
Answer: B) 6
Question: Which gas is responsible for the greenhouse effect?
A) Oxygen
B) Nitrogen
C) Methane
D) Hydrogen
Answer: C) Methane
Question: What is the formula for methane?
A) CH4
B) CO2
C) H2O
D) C6H12O6
Answer: A) CH4
Question: Which of the following is a halogen?
A) Sodium
B) Fluorine
C) Potassium
D) Calcium
Answer: B) Fluorine
Question: What is the chemical symbol for potassium?
A) K
B) Kg
C) P
D) Ka
Answer: A) K
Question: In a chemical reaction, what does the arrow (→) represent?
A) Addition
B) Subtraction
C) Transformation
D) Yield
Answer: D) Yield
Question: Which of the following is a metalloid?
A) Silicon
B) Calcium
C) Iron
D) Zinc
Answer: A) Silicon
Question: What is the formula for sulfuric acid?
A) HCl
B) H2SO4
C) NaOH
D) CH3COOH
Answer: B) H2SO4
Question: How many valence electrons does oxygen have?
A) 4
B) 6
C) 8
D) 2
Answer: B) 6
Question: Which gas is produced during photosynthesis?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: A) Oxygen
Question: What is the chemical symbol for silver?
A) Ag
B) Au
C) Al
D) Si
Answer: A) Ag
Question: What is the molar mass of water (H2O)?
A) 18 g/mol
B) 22 g/mol
C) 24 g/mol
D) 16 g/mol
Answer: A) 18 g/mol
Question: Which gas is responsible for the color and smell of rotten eggs?
A) Hydrogen sulfide (H2S)
B) Carbon monoxide (CO)
C) Oxygen (O2)
D) Nitrous oxide (N2O)
Answer: A) Hydrogen sulfide (H2S).
