SS2 Second Term Chemistry Past Questions And Answers
SS2 second term Chemistry questions with options and answers:
What is the chemical formula for sulfuric acid?
A) H2SO4
B) NaOH
C) HCl
D) CH3COOH
Answer: A) H2SO4
Which gas gives the characteristic odor to rotten eggs?
A) Oxygen
B) Hydrogen sulfide
C) Methane
D) Nitrous oxide
Answer: B) Hydrogen sulfide
What is the process of converting a solid directly into a gas called?
A) Sublimation
B) Condensation
C) Evaporation
D) Fusion
Answer: A) Sublimation
Which of the following is a non-metal?
A) Sodium
B) Chlorine
C) Iron
D) Calcium
Answer: B) Chlorine
What is the chemical symbol for potassium?
A) K
B) P
C) Pt
D) Pb
Answer: A) K
Which gas is produced during cellular respiration?
A) Oxygen
B) Carbon dioxide
C) Hydrogen
D) Nitrogen
Answer: B) Carbon dioxide
What is the main component of natural gas?
A) Methane
B) Ethane
C) Propane
D) Butane
Answer: A) Methane
Which element is present in all organic compounds?
A) Oxygen
B) Carbon
C) Hydrogen
D) Nitrogen
Answer: B) Carbon
What is the chemical symbol for tin?
A) Tn
B) Ti
C) Sn
D) Si
Answer: C) Sn
What is the process of breaking down complex substances into simpler ones called?
A) Synthesis
B) Decomposition
C) Combustion
D) Oxidation
Answer: B) Decomposition
Which gas is responsible for the color and smell of onions?
A) Hydrogen
B) Methane
C) Sulfur dioxide
D) Ammonia
Answer: C) Sulfur dioxide
What is the chemical formula for ammonia?
A) NH4Cl
B) NH3
C) HNO3
D) H2SO4
Answer: B) NH3
Which gas is released during the process of respiration?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: B) Carbon dioxide
What is the chemical symbol for silver nitrate?
A) AgNO3
B) HNO3
C) AgCl
D) NaNO3
Answer: A) AgNO3
Which element is added to steel to make stainless steel?
A) Nickel
B) Chromium
C) Copper
D) Zinc
Answer: B) Chromium
What is the process of conversion of a solid directly into a gas without passing through the liquid state?
A) Melting
B) Sublimation
C) Evaporation
D) Condensation
Answer: B) Sublimation
Which acid is present in lemon juice?
A) Citric acid
B) Acetic acid
C) Sulfuric acid
D) Hydrochloric acid
Answer: A) Citric acid
What is the chemical symbol for lead?
A) Ld
B) Li
C) Pb
D) Pd
Answer: C) Pb
Which gas is produced when acids react with carbonates?
A) Oxygen
B) Hydrogen
C) Carbon dioxide
D) Nitrogen
Answer: C) Carbon dioxide
What is the chemical formula for table salt?
A) Na2CO3
B) NaCl
C) KCl
D) CaCl2
Answer: B) NaCl.
