Everyday Science MCQs (page 32 of 51)
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 621–640.
- 621.
Mg(OH)₂ is the chemical formula of:
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Answer: C. magnesium hydroxide (milk of magnesia)
Mg(OH)₂ is magnesium hydroxide (milk of magnesia).
- 622.
What is the chemical formula of iron(III) oxide?
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Answer: C. Fe₂O₃
The formula of iron(III) oxide is Fe₂O₃.
- 623.
Fe₂O₃ is the chemical formula of:
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Answer: A. iron(III) oxide
Fe₂O₃ is iron(III) oxide.
- 624.
What is the chemical formula of aluminium oxide?
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Answer: C. Al₂O₃
The formula of aluminium oxide is Al₂O₃.
- 625.
Al₂O₃ is the chemical formula of:
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Answer: C. aluminium oxide
Al₂O₃ is aluminium oxide.
- 626.
What is the chemical formula of silicon dioxide (silica)?
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Answer: A. SiO₂
The formula of silicon dioxide (silica) is SiO₂.
- 627.
SiO₂ is the chemical formula of:
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Answer: B. silicon dioxide (silica)
SiO₂ is silicon dioxide (silica).
- 628.
What is the chemical formula of acetic acid?
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Answer: A. CH₃COOH
The formula of acetic acid is CH₃COOH.
- 629.
CH₃COOH is the chemical formula of:
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Answer: B. acetic acid
CH₃COOH is acetic acid.
- 630.
What is the chemical formula of ethane?
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Answer: D. C₂H₆
The formula of ethane is C₂H₆.
- 631.
C₂H₆ is the chemical formula of:
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Answer: D. ethane
C₂H₆ is ethane.
- 632.
What is the chemical formula of ethene (ethylene)?
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Answer: A. C₂H₄
The formula of ethene (ethylene) is C₂H₄.
- 633.
C₂H₄ is the chemical formula of:
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Answer: A. ethene (ethylene)
C₂H₄ is ethene (ethylene).
- 634.
What is the chemical formula of ethyne (acetylene)?
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Answer: A. C₂H₂
The formula of ethyne (acetylene) is C₂H₂.
- 635.
C₂H₂ is the chemical formula of:
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Answer: D. ethyne (acetylene)
C₂H₂ is ethyne (acetylene).
- 636.
What is the chemical formula of propane?
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Answer: C. C₃H₈
The formula of propane is C₃H₈.
- 637.
C₃H₈ is the chemical formula of:
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Answer: A. propane
C₃H₈ is propane.
- 638.
What is the chemical formula of butane?
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Answer: C. C₄H₁₀
The formula of butane is C₄H₁₀.
- 639.
C₄H₁₀ is the chemical formula of:
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Answer: C. butane
C₄H₁₀ is butane.
- 640.
What is the chemical formula of methanol?
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Answer: A. CH₃OH
The formula of methanol is CH₃OH.