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Chemistry

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What is Chemistry?

Chemistry is the scientific study of matter's characteristics and behaviour. It is a natural science that studies the elements that make up matter, as well as the compounds made up of atoms, molecules, and ions: their composition, structure, properties, and behaviour, including the changes that take place when they mix with other things.


The concept of chemistry is a subject that falls in between physics and biology in terms of scope. It's also known as "core science" since it provides a foundation for understanding both fundamental and applied scientific subjects.


This is the brief explanation of what is chemistry. Let us dig more into the fields of chemistry and how many types of chemistry in the article.


How Many Types of Chemistry Exist?

Chemistry is generally organised into five primary branches, according to LibreText's online chemistry textbook. Although food chemistry, environmental chemistry, and nuclear chemistry are more specialised issues, this section focuses on the five major subdisciplines of chemistry.


Analytical chemistry is concerned with the study of science chemicals and includes qualitative methods such as seeing colour changes as well as quantitative approaches such as determining the specific wavelength(s) of light absorbed by a chemical to cause that colour change.


These methods allow scientists to characterise a wide range of chemical properties, and they can assist society in a variety of ways. Analytical chemistry, for example, aids food manufacturers in creating tastier frozen dinners by measuring how molecules in food change over time when frozen. Analytical chemistry can also be used to assess environmental health, such as detecting contaminants in water or soil.


Biochemistry is a branch of chemistry that studies how biological systems work on a chemical level. Researchers have been able to map out the human genome, understand what different proteins perform in the body, and create solutions for a wide range of disorders thanks to biochemistry.


Chemical substances found in inorganic, or nonliving, materials or compounds such as minerals and metals are studied in inorganic chemistry. Inorganic chemistry traditionally includes compounds that do not include carbon (which are covered by organic chemistry), yet this definition is not totally correct, according to the American Chemical Society.


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Metals are metals that are connected to carbon, which is the main element studied in organic chemistry. Some molecules investigated in inorganic chemistry, such as "organometallic compounds," contain metals. As a result, compounds like this are included in both fields of concept of chemistry (Organic and Inorganic).


Paints, fertilisers, and sunscreens are just a few examples of products made with inorganic chemistry.


Organic chemistry is concerned with chemical molecules containing carbon, a vital element for life. Organic chemists research the content, structure, characteristics, and reactivity of compounds that contain non-carbon elements including hydrogen, sulphur, and silicon in addition to carbon. According to the American Chemical Society, organic chemistry is employed in a variety of applications including biotechnology, petroleum, medicines, and plastics.


Physical chemistry makes use of physics concepts to better understand how chemistry works. Finding out how atoms move and interact with one another, or why some liquids, such as water, transform into vapour at high temperatures, are just a few examples. Physical chemists study these phenomena at a microscopic level, down to the level of atoms and molecules, in order to draw conclusions about how chemical processes occur and what gives individual materials their unique properties.


According to the American Chemical Society, this type of study informs other fields of chemistry and is critical for product development. For example, Physical chemists may study how specific materials, such as plastic, react with science chemicals that are designed to come into contact with it.


Uses of Chemistry

Let’s identify the uses of chemistry here.


Supply of Metals: Metals such as gold, silver, copper, iron, aluminium, zinc, and a variety of alloys are used to create a wide range of items. Ornaments, utensils, coins, and a variety of industrial and agricultural items are among them.


Transport and Communication: All modes of transportation use chemical compounds such as gasoline, diesel, or coal.


Nuclear Atomic Energy: Chemistry has come to the rescue by delivering nuclear energy as an alternate source of energy.


Nature of Chemistry

As the concept of chemistry, Chemistry is defined as the study of matter's composition, structure, and properties, as well as its changes (transformations). The fundamental material of the universe is matter. It is defined as something with mass that travels through space.


Importance and Scope of Chemistry

Study of chemistry includes the majority of the chemistry used in research and development, such as creating new goods and materials for customers. Let us know the importance of chemistry in our life.


Organic, inorganic, physical, analytical, and industrial chemistry, as well as biochemistry, are areas of specialty that originated early in the history of chemistry and continue to excite public interest. During the 20th century, however, there was a lot of progress in the fields of polymer, environmental, and medicinal chemistry. Furthermore, new specialties, such as pesticide, forensic, and computer chemistry, begin to evolve.


Chemistry contributes significantly to the development and expansion of a variety of businesses. Glass, cement, paper, textile, leather, dye, and other industries fall into this category. Chemicals are also widely used in sectors such as paints, pigments, petroleum, sugar, plastics, and pharmaceuticals.


We now have environmentally friendly science chemicals, thanks to research, which help us conserve the environment. The replacement of CFCs in refrigerators is one such example.


Building Blocks of Chemistry

The most basic building blocks in chemistry are chemical elements, which are molecules made up of a single atom. Each chemical is distinct, with a certain number of protons, neutrons, and electrons, and is denoted by a name and a chemical symbol, such as "C" for carbon. The periodic table of elements lists the elements that have been discovered thus far, which include both natural and man-made elements such as carbon, hydrogen, and oxygen.


Chemical elements can combine to form chemical compounds, which are substances made up of many elements, such as carbon dioxide (one carbon atom bonded to two oxygen atoms) or a large number of atoms of a single element, such as oxygen gas (which is made of two oxygen atoms connected together). These chemical compounds can then be mixed with other science chemicals or elements to generate a wide range of materials and substances.


Conclusion

Chemistry is the study of matter (elements and compounds), whereas biology is the study of living beings. However, biochemistry, which studies the compounds found in living things and how they change within an organism, brings these two branches of science together.

FAQs on Chemistry

1. What is chemistry in simple words?

In simple terms, chemistry is the scientific study of matter—what it is made of, its properties, and how it changes. It explores the atoms, molecules, and ions that form everything around us, from the water we drink to the air we breathe. It is often called the 'central science' because it connects other sciences like physics and biology.

2. What are the main branches of chemistry?

Chemistry is broadly divided into five main branches, each focusing on a specific area of study:

  • Organic Chemistry: The study of carbon-containing compounds, which are essential to life. This includes everything from plastics and fuels to medicines and DNA.
  • Inorganic Chemistry: The study of compounds that do not contain carbon-hydrogen bonds, such as metals, minerals, and salts. This branch is crucial for developing products like paints, fertilisers, and batteries.
  • Physical Chemistry: This branch applies the principles of physics to understand chemical systems. It explores topics like thermodynamics, quantum mechanics, and reaction kinetics.
  • Analytical Chemistry: Focuses on identifying and quantifying the chemical components of substances. It involves techniques used in environmental testing, food quality control, and medical diagnostics.
  • Biochemistry: The study of chemical processes that occur within living organisms. It bridges biology and chemistry to explain how life works at a molecular level.

3. How is chemistry important in our daily lives?

Chemistry plays a vital role in nearly every aspect of our daily lives. For example, the food we eat is preserved and enhanced through chemical principles. The soaps and detergents we use for cleaning are products of chemical reactions. Medicines like painkillers and antibiotics are developed through extensive chemical research. Even the clothes we wear are made of synthetic fibres created via chemical processes.

4. What is the scope of chemistry in various industries?

Chemistry is fundamental to the growth and operation of numerous industries. It is essential for the production of materials like glass, cement, paper, and textiles. The petroleum industry relies on chemistry for refining crude oil into fuels like petrol and diesel. Furthermore, the pharmaceutical, paint, sugar, and plastics industries all depend heavily on chemical synthesis and analysis for product development and quality control.

5. How does chemistry act as a central science connecting physics and biology?

Chemistry is considered the central science because it provides the fundamental understanding needed to bridge other scientific disciplines. It connects to physics through physical chemistry, which uses principles like energy and motion to explain atomic and molecular behaviour. It connects to biology through biochemistry, which explains the chemical processes of life, such as metabolism and genetics. Essentially, chemistry explains the 'what' and 'how' of matter, which is the foundation upon which biological systems operate and physical laws act.

6. Why is carbon the central element in organic chemistry but not in inorganic chemistry?

Carbon is the central element in organic chemistry due to its unique ability to form stable, long chains and rings with itself and other elements. This property, known as catenation, allows for the creation of a vast number of complex molecules that are the basis of all known life. In contrast, inorganic chemistry studies all other elements and compounds, which do not typically involve carbon-hydrogen bonds and lack carbon's extensive chain-forming ability.

7. What is the difference between a chemical element and a chemical compound?

A chemical element is a pure substance consisting of only one type of atom, distinguished by its atomic number (the number of protons in its nucleus). Examples include Oxygen (O), Iron (Fe), and Carbon (C). A chemical compound, on the other hand, is a substance formed when two or more different elements are chemically bonded together in a fixed ratio. For example, water (H₂O) is a compound made of hydrogen and oxygen atoms bonded together.

8. Is it possible for a product to be 'chemical-free'?

No, it is not possible for any product to be truly 'chemical-free'. This is a common marketing term that often creates a misconception. By definition, all matter is made of chemicals. Water is a chemical (H₂O), the air we breathe is a mixture of chemicals (like N₂, O₂), and the food we eat is composed of complex organic chemicals. The term 'chemical-free' is typically used to imply that a product is free from synthetic or harmful substances, but scientifically, everything tangible is made of chemicals.