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Basic Concepts of Chemistry in One Shot (NCERT) Video Lecture | Chemistry Class 11 - NEET

195 videos|337 docs|190 tests

FAQs on Basic Concepts of Chemistry in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

1. What are the basic concepts of chemistry?
Ans. The basic concepts of chemistry include elements, compounds, mixtures, chemical reactions, and the periodic table. Chemistry deals with the study of matter, its properties, composition, and the changes it undergoes.
2. What is an element?
Ans. An element is a pure substance that cannot be broken down into simpler substances by chemical means. Elements are represented by symbols and listed in the periodic table. Each element is composed of atoms with the same number of protons.
3. What is a compound?
Ans. A compound is a substance composed of two or more different elements that are chemically bonded together. Compounds have a fixed ratio of elements and can be broken down into simpler substances through chemical reactions.
4. What are mixtures?
Ans. Mixtures are combinations of two or more substances that are physically mixed together but not chemically bonded. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition). Examples include air, saltwater, and sand.
5. What is the periodic table?
Ans. The periodic table is a tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties. It provides a systematic organization of all known elements and their relationships. The periodic table is divided into groups (vertical columns) and periods (horizontal rows).
195 videos|337 docs|190 tests
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