Chemistry Quiz: Carbon And Its Compound Trivia Questions!

Explanation
The reason provided states that covalent bonds are formed by the sharing of electrons in the bonding atoms. This aligns with the assertion that chemical bonds in organic compounds are covalent in nature, as covalent bonds involve the sharing of electrons between atoms. Therefore, the reason satisfies the given assertion.

Explanation
The reason provided is insufficient to support the assertion that diamond is the hardest crystalline form of carbon. While it is true that carbon atoms in diamond are tetrahedral in nature, this alone does not explain why diamond is the hardest crystalline form of carbon. Other factors such as the strong covalent bonds between carbon atoms in diamond and its dense, rigid structure contribute to its hardness. Therefore, the reason provided does not sufficiently support the assertion.

Explanation
The reason provided does not hold good for the given assertion. Catenation refers to the ability of carbon atoms to form covalent bonds with each other, resulting in the formation of long chains, branched chains, or rings. This property of carbon allows it to form a wide variety of compounds with different structures and properties. On the other hand, allotropy refers to the existence of an element in different forms or allotropes. While carbon does exhibit allotropy (e.g. diamond and graphite), it is not directly related to the formation of a large number of carbon compounds through catenation.

Explanation
Buckminster fullerene is the allotropic form of carbon. Allotropes are different forms of an element that have the same chemical composition but different physical properties. Buckminster fullerene, also known as C60 or fullerene, is a molecule made up of 60 carbon atoms arranged in a unique soccer ball-like structure. It was discovered in 1985 and has since been extensively studied for its interesting properties, such as high tensile strength and potential applications in various fields including medicine and electronics.

Explanation
Graphite is a form of carbon that consists of layers of carbon atoms arranged in a hexagonal lattice structure. Each carbon atom in graphite is bonded to three other carbon atoms, forming strong covalent bonds within the layers. However, the fourth valence electron of each carbon atom is not involved in bonding and is relatively free to move within the layers. These delocalized electrons are responsible for the electrical conductivity of graphite, as they can easily carry electric charge through the material. Therefore, the presence of free electrons in graphite allows it to conduct electricity, despite being a non-metal.

Explanation
The common difference of succession between methane (CH4) and ethane (C2H6) is CH2. This can be observed by comparing the molecular formulas of the two compounds. Methane has one carbon atom and four hydrogen atoms, while ethane has two carbon atoms and six hydrogen atoms. Therefore, the difference between the two compounds is one carbon atom and two hydrogen atoms, which is represented by CH2.

Explanation
The correct answer is ethyne. The IUPAC name of the first member of alkyne is ethyne. Alkynes are hydrocarbons that contain a triple bond between two carbon atoms. Ethyne, also known as acetylene, is the simplest alkyne and consists of two carbon atoms bonded together with a triple bond.

Explanation
The terminal functional group refers to the functional group that is located at the end of a molecule. In this case, the aldehydic group is the terminal functional group because it is typically found at the end of a carbon chain. The ketonic group, on the other hand, is typically found within a carbon chain and is not considered the terminal functional group.

Explanation
When acetic acid is heated with sodium carbonate (X) in a test tube, carbon dioxide gas (Y) is evolved. This is because sodium carbonate reacts with acetic acid to produce sodium acetate and carbon dioxide. The carbon dioxide gas turns lime water milky when passed through it, indicating the presence of carbon dioxide. Therefore, X is sodium carbonate and Y is carbon dioxide.

Explanation
The reason provided is correct for the assertion. Denaturation of ethyl alcohol involves adding substances like methyl alcohol to make it unfit for consumption. Methyl alcohol is toxic and can cause severe health issues if ingested. Therefore, denatured alcohol is not suitable for drinking purposes.