1.
N2O4 is:
Correct Answer
B. Dinitrogen tetroxide
Explanation
N2O4, also known as dinitrogen tetroxide, is a chemical compound consisting of two nitrogen atoms (N) and four oxygen atoms (O). It is a brown, highly reactive gas at room temperature and is used as a propellant in rocket engines and as a component in various chemical reactions. N2O4 is a key compound in the field of chemistry and aerospace engineering.
2.
N2O6 is:
Correct Answer
D. Dinitrogen hexoxide
Explanation
N2O6, also known as dinitrogen hexoxide, is a chemical compound consisting of two nitrogen atoms (N) and six oxygen atoms (O). It is an unstable and highly reactive compound, primarily existing as transient intermediates in certain chemical reactions. Dinitrogen hexoxide is not a commonly encountered or stable compound under standard conditions and is mainly of interest in the field of chemistry due to its reactivity in certain reactions.
3.
H2SO4 is:
Correct Answer
D. Sulfuric acid
Explanation
H2SO4 is sulfuric acid, a strong and highly corrosive mineral acid. It is a diatomic molecule consisting of two hydrogen atoms (H), one sulfur atom (S), and four oxygen atoms (O). Sulfuric acid is widely used in various industrial processes, including the production of fertilizers, detergents, and as a laboratory reagent. It is known for its strong acidity and its ability to react with many substances, making it an essential component in numerous chemical reactions and applications.
4.
CCl4 is:
Correct Answer
C. Carbon tetrachloride
Explanation
CCl4 is carbon tetrachloride, a chemical compound consisting of one carbon atom (C) and four chlorine atoms (Cl). It is a colorless, heavy, nonflammable liquid with a sweet odor and a density higher than water. Carbon tetrachloride was once commonly used as a solvent and fire extinguishing agent, but its use has decreased due to its harmful effects on health and the environment.
5.
OF2 is:
Correct Answer
A. Oxygen difluoride
Explanation
OF2 is oxygen difluoride, a chemical compound consisting of one oxygen atom (O) and two fluorine atoms (F). It is a pale yellow gas at room temperature and is known for its strong odor. Oxygen difluoride is a highly reactive compound and is used in certain chemical reactions and fluorination processes in the chemical industry. It is a covalently bonded molecule that contains one oxygen atom and two fluorine atoms covalently bonded together.
6.
N2O5 is:
Correct Answer
B. Dinitrogen pentoxide
Explanation
N2O5, also known as dinitrogen pentoxide, is a chemical compound consisting of two nitrogen atoms (N) and five oxygen atoms (O). It is a powerful and highly reactive chemical compound that exists as a white crystalline solid at low temperatures. Dinitrogen pentoxide is primarily used as a nitrating agent in various chemical reactions to introduce nitro groups into organic compounds. It is highly reactive and can be a potentially hazardous substance.
7.
N2O is:
Correct Answer
C. Nitrous Oxide
Explanation
N2O, also known as nitrous oxide, is a chemical compound consisting of two nitrogen atoms (N) and one oxygen atom (O). It is a colorless, sweet-smelling gas and is commonly referred to as "laughing gas" due to its euphoric effects when inhaled. Nitrous oxide is used for various purposes, including medical and dental anesthesia, as a propellant in aerosol cans, and as a recreational drug for its mild, short-term psychoactive effects. It is considered a greenhouse gas and has applications in the culinary industry for whipped cream dispensers.
8.
SO3 is:
Correct Answer
D. Sulfur trioxide
Explanation
SO3, or sulfur trioxide, is a chemical compound composed of one sulfur atom bonded to three oxygen atoms. It is a colorless, reactive gas that plays a significant role in various industrial processes, including the production of sulfuric acid.
9.
PCl5 is:
Correct Answer
C. pHospHorous pentachloride
Explanation
PCl5 is the molecular formula for phosphorus pentachloride, an inorganic compound that consists of one phosphorus atom and five chlorine atoms. It is a colorless, highly reactive solid that is used as a chlorinating agent and as a catalyst in various chemical reactions. Phosphorus pentachloride is known for its strong, irritating odor and can be hazardous if inhaled or if it comes into contact with skin or eyes. As a Lewis acid, it reacts with water to form phosphoric acid and hydrochloric acid.
10.
H2O3 is:
Correct Answer
B. Hydrogen Trioxide
Explanation
H2O3, also known as hydrogen trioxide, is not a stable chemical compound with a well-defined structure. It does not exist under normal conditions and is not a recognized or commonly studied compound in chemistry. The formula H2O3 does not correspond to a known or stable molecule. If you have a specific context or information related to H2O3, please provide additional details so that I can offer more accurate information.