GCSE Core Chemistry Quiz

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Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products. With her expertise, Dr. Waxali ensures the accuracy and relevance of our chemistry quizzes, contributing to a comprehensive understanding of chemical principles and advancements in the field.

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Questions: 10 | Attempts: 4,653 | Updated: Mar 11, 2024

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Do you love chemistry? Are you looking to solidify your understanding of GCSE Core Chemistry? Dive into our interactive quiz designed to reinforce your knowledge and boost your confidence. Our quiz covers essential topics, from chemical reactions to atomic structure, in a concise and engaging format. Test your comprehension with a variety of questions carefully crafted to challenge and educate.

You would be happy to know that we have a GCSE core chemistry quiz for you to test your knowledge with some difficult chemistry questions. With the GCSE exams just around the corner, ensuring you have a proper understanding of Read moreeverything we have covered in our core chemistry class is important. Do you feel like you are ready for the exam? Get to refresh your memory by taking the quiz below. All the best, and keep a lookout for more like it!

GCSE Core Chemistry Questions and Answers

1.

What does sulfur dioxide cause?
- A.
  
  Global dimming
- B.
  
  Global Warming
- C.
  
  Acid rain
- D.
  
  Climate changes
Correct Answer
C. Acid rain

Explanation
Sulfur dioxide is a major contributor to the formation of acid rain. When released into the atmosphere, it reacts with water, oxygen, and other chemicals to form sulfuric acid. This acid then falls to the earth's surface as acid rain, which can have harmful effects on the environment, including damaging forests, lakes, and buildings. Therefore, sulfur dioxide causes acid rain.

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2.

What does a hydrocarbon consist of?
- A.
  
  Hydrogen atoms
- B.
  
  Hydrogen and carbon atoms
- C.
  
  Hydrogen and water atoms
- D.
  
  Different compounds
Correct Answer
B. Hydrogen and carbon atoms

Explanation
A hydrocarbon consists of hydrogen and carbon atoms. This is because hydrocarbons are organic compounds composed solely of hydrogen and carbon atoms. They can vary in size and complexity, forming different compounds, but the basic composition remains the same. Hydrocarbons are essential in various industries, such as fuel production and chemical synthesis, due to their abundance and versatility.

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3.

Crude oil is a pure substance.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Crude oil is not a pure substance because it is a mixture of different hydrocarbons, such as alkanes, cycloalkanes, and aromatic compounds. It also contains impurities like sulfur, nitrogen, and oxygen compounds. Therefore, it does not meet the definition of a pure substance, which is a substance that is made up of only one type of particle or molecule.

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4.

If a substance has a double bond, it means that....
- A.
  
  It is unsaturated
- B.
  
  It is Hardening
- C.
  
  It is saturated
- D.
  
  It is a hydrocarbon
Correct Answer
A. It is unsaturated

Explanation
If a substance has a double bond, it means that it is unsaturated. This is because a double bond indicates that there are fewer hydrogen atoms bonded to the carbon atoms in the molecule. In an unsaturated compound, there is at least one double bond between carbon atoms, which allows for the possibility of additional atoms or groups to be added to the molecule. This makes the substance more reactive and capable of undergoing further chemical reactions.

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1
0
5.

What are the three main uses of crude oil products? Select all three
- A.
  
  Fuels for transport
- B.
  
  Biodiesel
- C.
  
  Making batteries
- D.
  
  Tar road surfacing
- E.
  
  Lubricating oils
Correct Answer(s)
A. Fuels for transport
D. Tar road surfacing
E. Lubricating oils

Explanation
Crude oil is used for various purposes, and three main uses include fuels for transport, tar road surfacing, and lubricating oils. Fuels for transport are derived from crude oil and are used to power vehicles. Tar road surfacing involves using crude oil derivatives to create road surfaces that are durable and resistant to weather conditions. Lubricating oils, also derived from crude oil, are used to reduce friction and wear between moving parts in machinery and engines. These three uses highlight the versatility and importance of crude oil in various industries.

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6.

Uses of aluminum are... Select all that apply
- A.
  
  Overhead power cables
- B.
  
  Car headlamp reflectors
- C.
  
  Bridge construction
- D.
  
  Engine blocks
- E.
  
  Furniture making
Correct Answer(s)
A. Overhead power cables
B. Car headlamp reflectors
D. Engine blocks

Explanation
Aluminum is widely used in overhead power cables due to its lightweight and excellent conductivity properties. It is also used in car headlamp reflectors as it is highly reflective and helps to enhance visibility on the road. Additionally, aluminum is commonly used in engine blocks because of its high strength-to-weight ratio and good thermal conductivity. However, furniture making and bridge construction do not typically involve the use of aluminum.

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0
1
7.

Sulfate is a nonreactive element.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Sulfate is not an element, but rather a polyatomic ion composed of sulfur and oxygen. It is highly reactive and can form compounds with various elements. Therefore, the statement that sulfate is a nonreactive element is incorrect.

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8.

Large hydrocarbon molecules are broken down into smaller useful hydrocarbon molecules by heating over a catalyst. This process is called cracking.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Large hydrocarbon molecules can indeed be broken down into smaller, more useful hydrocarbon molecules through a process called cracking. This process involves heating the hydrocarbons over a catalyst, which helps to break the chemical bonds within the molecules. By breaking down the larger molecules, cracking allows for the production of smaller hydrocarbon molecules that can be used for various purposes, such as fuel or chemical production. Therefore, the statement "Large hydrocarbon molecules are broken down into smaller useful hydrocarbon molecules by heating over a catalyst. This process is called cracking" is true.

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9.

Limestone is _______.
- A.
  
  Hydrogen and nitrogen
- B.
  
  Sulfate
- C.
  
  Aluminum
- D.
  
  Calcium carbonate
Correct Answer
D. Calcium carbonate

Explanation
Limestone is composed mainly of calcium carbonate. This is a type of sedimentary rock that forms from the accumulation of shells, coral, and other organic remains. Calcium carbonate is also the main component of shells, pearls, and the skeletons of marine organisms. It is a common mineral found in rocks all over the world and is used in various industries, such as construction, agriculture, and manufacturing.

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10.

Magnesium carbonate has the formula _______.
- A.
  
  MtCO
- B.
  
  MkCO
- C.
  
  MgCO
- D.
  
  MpCO
Correct Answer
C. MgCO

Explanation
Magnesium carbonate has the chemical formula MgCO. This is because magnesium has a 2+ charge and carbonate has a 2- charge. To balance the charges, one magnesium ion (Mg2+) combines with one carbonate ion (CO32-), resulting in the formula MgCO.

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Zohra Sattar |PhD, Chemistry |

Chemistry Expert

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Current Version
Mar 11, 2024

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Expert Reviewed by
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Jun 14, 2009

Quiz Created by
Corina

GCSE Core Chemistry Quiz

GCSE Core Chemistry Questions and Answers

What does sulfur dioxide cause?

What does a hydrocarbon consist of?

Crude oil is a pure substance.

If a substance has a double bond, it means that....

What are the three main uses of crude oil products? Select all three

Uses of aluminum are... Select all that apply

Sulfate is a nonreactive element.

Large hydrocarbon molecules are broken down into smaller useful hydrocarbon molecules by heating over a catalyst. This process is called cracking.

Limestone is _______.

Magnesium carbonate has the formula _______.