What Do You Know About Ethyne? Quiz
Welcome to our Ethyne Quiz, where you'll embark on a journey through the fascinating world of organic chemistry. Ethyne, also known as acetylene, is a simple yet crucial compound with wide-ranging applications in industry and beyond. This quiz is designed to test your knowledge and understanding of ethyne, from its chemical structure to its various properties and uses.
In this quiz, you'll encounter questions that delve into the molecular structure of ethyne, its bonding characteristics, and its reactivity with other compounds. Challenge yourself to see how well you grasp the concepts surrounding ethyne and gain insights into its importance Read morein the realm of chemistry. Get ready to test your understanding of ethyne and discover the intricacies of this versatile compound. Take the Ethyne Quiz now and embark on an enlightening exploration of organic chemistry!
Ethyne Questions and Answers
- 1.
The molar mass of ethyne is...
- A.
26.04g/mol
- B.
25.05g/mol
- C.
20.00g/mol
- D.
23.08g/mol
Correct Answer
A. 26.04g/molExplanation
The molar mass of ethyne (also known as acetylene) is 26.04g/mol. Molar mass is the mass of one mole of a substance, and it is calculated by adding up the atomic masses of all the atoms in the chemical formula. The chemical formula for ethyne is C2H2, which consists of two carbon atoms and two hydrogen atoms. The atomic mass of carbon is 12.01g/mol, and the atomic mass of hydrogen is 1.01g/mol. Therefore, the molar mass of ethyne is (2 * 12.01g/mol) + (2 * 1.01g/mol) = 26.04g/mol.Rate this question:
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- 2.
It was discovered in...
- A.
1835
- B.
1836
- C.
1837
- D.
1838
Correct Answer
B. 1836Explanation
The correct answer is 1836. This means that whatever was discovered, it was found in the year 1836.Rate this question:
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- 3.
It was rediscovered by French chemist Marcellin Berthelot, who coined the name acétylène, in which year?
- A.
1860
- B.
1861
- C.
1862
- D.
1863
Correct Answer
A. 1860Explanation
The correct answer is 1860. Acetylene was rediscovered by French chemist Marcellin Berthelot in 1860. He also coined the name acétylène for this compound.Rate this question:
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- 4.
Its vapor pressure is...
- A.
44.2 atm
- B.
44.5 atm
- C.
42.4 atm
- D.
24.4 atm
Correct Answer
A. 44.2 atmExplanation
The correct answer is 44.2 atm. This means that the vapor pressure of the substance in question is 44.2 atmospheres. Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid or solid phase at a given temperature. In this case, the substance has a vapor pressure of 44.2 atm, indicating that it has a high tendency to evaporate and form a vapor at the given temperature.Rate this question:
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- 5.
What is its density?
- A.
1.097 kg/m3
- B.
1.098kg/m3
- C.
1.088kg/m3
- D.
1.087kg/m3
Correct Answer
A. 1.097 kg/m3Explanation
The density of a substance is defined as its mass per unit volume. In this case, the substance has a density of 1.097 kg/m3, which means that for every 1 cubic meter of the substance, it has a mass of 1.097 kilograms.Rate this question:
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- 6.
What happens to its smell when pure?
- A.
It has a sweet smell
- B.
It has a choking smell
- C.
It has an irritating smell
- D.
It is odorless
Correct Answer
A. It has a sweet smellExplanation
When a substance is described as having a sweet smell, it means that it emits a pleasant and sugary aroma. This indicates that the substance is likely to be pleasant or enjoyable to smell.Rate this question:
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- 7.
It is explosive if mixed with...
- A.
Water
- B.
Air
- C.
H2
- D.
Steamed water
Correct Answer
B. AirExplanation
When a substance is described as "explosive," it means that it has the potential to undergo a rapid and violent chemical reaction. In this case, the correct answer is "Air." This means that if the substance in question is mixed with air, it can react in a way that produces an explosion. It is important to handle and store such substances with caution to prevent any accidents or harm.Rate this question:
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- 8.
Acetylene cannot exist as a...
- A.
Solid
- B.
Liquid
- C.
Gas
- D.
Aqueous
Correct Answer
B. LiquidExplanation
Acetylene cannot exist as a liquid because it is a highly flammable gas at room temperature and atmospheric pressure. It is typically stored and transported in high-pressure cylinders as a compressed gas. The low boiling point of acetylene (-84 degrees Celsius) makes it difficult to liquefy and maintain in a liquid state under normal conditions. Therefore, acetylene is commonly used and handled as a gas.Rate this question:
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- 9.
Acetylene is a chemical compound composed of....
- A.
Two carbon and two hydrogen atoms
- B.
Two carbon and one hydrogen atoms
- C.
One carbon and two hydrogen atoms
- D.
Two carbon and there hydrogen atoms
Correct Answer
A. Two carbon and two hydrogen atomsExplanation
Acetylene is composed of two carbon and two hydrogen atoms. This can be determined by looking at the chemical formula for acetylene, which is C2H2. The subscript 2 indicates that there are two atoms of carbon, and the subscript 2 for hydrogen indicates that there are also two atoms of hydrogen. Therefore, the correct answer is two carbon and two hydrogen atoms.Rate this question:
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- 10.
It was prepared by the hydrolysis of calcium carbide, a reaction discovered by Friedrich Wöhler in...
- A.
1861
- B.
1862
- C.
1863
- D.
1864
Correct Answer
B. 1862Explanation
The correct answer is 1862. This is because Friedrich Wöhler discovered the reaction of hydrolysis of calcium carbide in 1862. This reaction involves the reaction of calcium carbide with water to produce calcium hydroxide and acetylene gas. This discovery was significant as it led to the production of acetylene gas, which has various industrial applications, including its use as a fuel for welding and cutting torches.Rate this question:
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Apr 02, 2024Quiz Edited by
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Mar 07, 2018Quiz Created by
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