Exam: GRE (Verbal)

Definition: Referring to a molecule that is composed of two atoms, which can be the same or different elements.

Example: Oxygen exists as a diatomic molecule, meaning each molecule is made up of two oxygen atoms.

Definition: A fine powder made from the remains of tiny aquatic organisms called diatoms, used in various industries for filtering, absorbing, and insulating.

Example: The company uses diatomite as a natural filter in its water purification system.

Definition: In a way that relates to the diatonic scale, which consists of seven pitches in a specific pattern of whole and half steps.

Example: The melody was composed diatonically, following the natural scale without any chromatic alterations.

Definition: A type of volcanic vent that is shaped like a cone and is created when gas-filled magma explodes.

Example: The geologists studied the diatreme to understand the volcanic activity in the area.

Definition: A long and angry speech or piece of writing that criticizes someone or something very strongly.

Example: The politician's diatribe against his opponents was filled with harsh accusations.

Definition: Describing a chemical compound that has two nitrogen atoms bonded together, often used in organic chemistry and photography.

Example: The diazo compound is essential for creating certain types of photographic prints.

Definition: A type of chemical compound that contains two nitrogen atoms and is often used in processes like copying or coloring, especially when exposed to ultraviolet light.

Example: The artist used a diazo process to create vibrant colors in her prints.

Definition: A type of chemical compound that has a five-membered ring made up of three carbon atoms and two nitrogen atoms, which can exist in forms like pyrazole and imidazole.

Example: Researchers are studying the properties of diazole compounds for potential applications in pharmaceuticals.

Definition: A type of chemical compound that contains a specific group of nitrogen atoms attached to an organic molecule, often used in making dyes.

Example: The chemist synthesized a diazonium compound for the dyeing process.

Definition: The process of converting an aromatic primary amine into a diazonium compound, usually using nitrous acid.

Example: The chemist performed diazotization to create the diazonium compound needed for the reaction.

Definition: To convert a compound into a diazonium compound, often used in chemical reactions.

Example: In the laboratory, chemists often diazotize aromatic amines to create diazonium salts.