General Knowledge Questions on Chemistry
What is the chemical symbol for gold?
Answer: Au
What is the process of converting a solid directly into a gas without passing through the liquid state called?
Answer: Sublimation
Which gas is responsible for the distinctive smell of rotten eggs?
Answer: Hydrogen sulfide (H2S)
What is the pH value of a neutral solution?
Answer: 7
What is the chemical formula for water?
Answer: H2O
Which gas is released during photosynthesis?
Answer: Oxygen (O2)
What is the smallest unit of an element that retains its properties?
Answer: Atom
Which acid is found in citrus fruits like lemons and oranges?
Answer: Citric acid
What is the chemical name for baking soda?
Answer: Sodium bicarbonate
Which gas is most abundant in the Earth’s atmosphere?
Answer: Nitrogen (N2)
What is the process by which a liquid changes into a gas at its surface at any temperature?
Answer: Evaporation
Which gas is known as laughing gas?
Answer: Nitrous oxide (N2O)
What is the main component of natural gas?
Answer: Methane (CH4)
What is the chemical formula for table salt?
Answer: NaCl
What is the common name for acetylsalicylic acid, a widely used pain reliever?
Answer: Aspirin
Which chemical element has the symbol K on the periodic table?
Answer: Potassium
What is the process of a substance changing from a gas to a liquid called?
Answer: Condensation
What is the chemical formula for methane gas?
Answer: CH4
Which gas is responsible for the greenhouse effect on Earth?
Answer: Carbon dioxide (CO2)
What is the lightest and most abundant element in the universe?
Answer: Hydrogen
Which acid is present in vinegar?
Answer: Acetic acid
What is the chemical symbol for silver?
Answer: Ag
Which process is used to separate a mixture of liquids based on their boiling points?
Answer: Distillation
What is the chemical symbol for iron?
Answer: Fe
What is the substance added to a chemical reaction to increase the rate of reaction without being consumed?
Answer: Catalyst
What is the state of matter with a definite volume but no definite shape?
Answer: Liquid
Which gas do plants consume during photosynthesis?
Answer: Carbon dioxide (CO2)
What is the chemical formula for hydrogen peroxide?
Answer: H2O2
What is the study of carbon compounds called?
Answer: Organic chemistry
What is the process of converting sugar into alcohol called?
Answer: Fermentation
Answers:
Au
Sublimation
Hydrogen sulfide (H2S)
7
H2O
Oxygen (O2)
Atom
Citric acid
Sodium bicarbonate
Nitrogen (N2)
Evaporation
Nitrous oxide (N2O)
Methane (CH4)
NaCl
Aspirin
Potassium
Condensation
CH4
Carbon dioxide (CO2)
Hydrogen
Acetic acid
Ag
Distillation
Fe
Catalyst
Liquid
Carbon dioxide (CO2)
H2O2
Organic chemistry
Fermentation
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