Exam: IELTS

Definition: A chemical compound that is a form of urea, often used in fertilizers and as a nitrogen source in various applications.

Example: Carbamide is commonly used in agriculture to enhance soil fertility.

Definition: A type of compound made from carbon and a more positively charged element, often used to create very hard materials for cutting tools.

Example: The drill bit was made of carbide, allowing it to cut through metal easily.

Definition: A type of enzyme that helps break down carbohydrates into simpler sugars.

Example: Amylase is a common carbohydrase found in saliva that starts the digestion of starches.

Definition: A type of organic compound that includes sugars and starches, which provide energy in our diet. These compounds are made by plants and consist of carbon, hydrogen, and oxygen.

Example: Bread and pasta are rich in carbohydrates, which give us energy.

Definition: Relating to or containing a type of acid that is derived from coal tar, often used in disinfectants and antiseptics.

Example: The carbolic solution was used to clean the surgical instruments.

Definition: A type of acid that is used as a disinfectant and is derived from coal tar.

Example: The hospital used carbolic to clean the surgical instruments.

Definition: A chemical element that is found in all living things and many materials, known for its ability to form a wide variety of compounds. It can exist in different forms, such as graphite and diamond, and is essential for life.

Example: Carbon is a key element in organic chemistry and is found in all known life forms.

Definition: Relating to or containing carbon, often used to describe materials or substances that have a high carbon content.

Example: The carbonaceous material in the soil helps to improve its fertility.

Definition: A type of chemical compound that is formed from carbonic acid, often found in salts or esters.

Example: Sodium carbonate is commonly used in glass making and as a cleaning agent.

Definition: To change a substance into a compound that contains carbon and oxygen, often by adding carbon dioxide.

Example: The scientist decided to carbonate the water to make it fizzy.

Definition: Describing a drink that has bubbles or fizz because it contains carbon dioxide gas.

Example: I prefer carbonated drinks like soda over still water.

Definition: The process or state of having carbon dioxide gas mixed into a liquid, which creates bubbles and fizz.

Example: The carbonation in the soda made it refreshing and bubbly.