Everyday Science MCQs
Physics, chemistry, biology, the human body, units and the solar system, covering the everyday science section of general-ability tests.
1,014 questions. Select an option to check your answer, or open "Show answer". Showing 1–20.
- 1.
What is the chemical symbol of iron?
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Answer: B. Fe
Fe is the chemical symbol of iron.
- 2.
What is the chemical symbol of copper?
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Answer: A. Cu
Cu is the chemical symbol of copper.
- 3.
What is the chemical symbol of sodium?
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Answer: A. Na
Na is the chemical symbol of sodium.
- 4.
What is the chemical symbol of potassium?
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Answer: D. K
K is the chemical symbol of potassium.
- 5.
What is the chemical symbol of calcium?
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Answer: B. Ca
Ca is the chemical symbol of calcium.
- 6.
What is the chemical symbol of magnesium?
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Answer: B. Mg
Mg is the chemical symbol of magnesium.
- 7.
What is the chemical formula of carbon dioxide?
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Answer: C. CO2
Carbon dioxide is CO2.
- 8.
What is the chemical formula of oxygen gas?
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Answer: B. O2
Oxygen gas exists as O2.
- 9.
What is the chemical formula of nitrogen gas?
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Answer: A. N2
Nitrogen gas exists as N2.
- 10.
What is the chemical formula of hydrogen gas?
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Answer: B. H2
Hydrogen gas exists as H2.
- 11.
What is the chemical formula of table salt?
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Answer: D. NaCl
Table salt is sodium chloride, NaCl.
- 12.
What is the chemical formula of baking soda?
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Answer: D. NaHCO3
Baking soda is sodium bicarbonate, NaHCO3.
- 13.
What is the chemical formula of washing soda?
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Answer: D. Na2CO3
Washing soda is sodium carbonate, Na2CO3.
- 14.
What is the chemical formula of caustic soda?
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Answer: D. NaOH
Caustic soda is sodium hydroxide, NaOH.
- 15.
What is the chemical formula of hydrochloric acid?
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Answer: C. HCl
Hydrochloric acid is HCl.
- 16.
What is the chemical formula of sulfuric acid?
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Answer: A. H2SO4
Sulfuric acid is H2SO4.
- 17.
What is the chemical formula of nitric acid?
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Answer: C. HNO3
Nitric acid is HNO3.
- 18.
What is the chemical formula of phosphoric acid?
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Answer: D. H3PO4
Phosphoric acid is H3PO4.
- 19.
What is the chemical formula of ammonia?
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Answer: C. NH3
Ammonia is NH3.
- 20.
What is the chemical formula of methane?
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Answer: B. CH4
Methane is CH4.