Some Basic Concepts Of Chemistry Chapter 1 Class 11 __EXCLUSIVE_

Class 11 chemistry important questions with answers are provided here for Chapter 1 Some Basic Concepts of Chemistry. These important questions are based on the CBSE board curriculum and correspond to the most recent Class 11 chemistry syllabus. By practising these Class 11 important questions, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 11 Annual examinations as well as other entrance exams such as NEET and JEE.

Some basic concepts of chemistry are the most basic chapter of chemistry. It has various important concepts that you need to have greater insights for a better understanding of the whole of the chemistry. This article will help you to give important insights into this chapter and will also guide you in some important tips and guidelines.

Nature of Matter

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Chapter 1 of Chemistry of Class 11 is based on the basic concepts of Chemistry. It consists of information related to the basic ideas in Chemistry that students have to study throughout Class 11. It is very important to understand the basic concepts of Chapter 1 of Chemistry of Class 11 for a proper understanding of the other concepts. Students should focus on this first chapter for a clear understanding of the subject.

The students of the science stream must be aware that chemistry is a branch of science that deals with the composition, structure, properties, and characters of different matter. Chemistry is also known as the science of atoms and molecules. While knowing your class 11 chemistry syllabus is important is also essential to be through with the course. This blog will cover some vital and important study notes related to chapter 1 of some basic concepts of Chemistry class 11.

Chapter 1 of some basic concepts of Chemistry Class 11 also discusses the properties of different substances and their unique characteristics and properties. Having said that, the properties can be divided into two types:

The concept of significant figures in chapter 1 of some basic chemistry class 11 explains that the reliability of a measure is given by the number of digits used to represent it. To put it more precisely, we use figures which are known with certainty. These numbers are known as significant figures. They contain all specific figures plus a questionable figure in a number.

This brings us to the end of this blog on some basic concepts of chemistry class 11. We hope that the blog will help you during your exams to quickly brush up on some basic concepts of chemistry and other study notes. For more such blogs, study notes and amazing reads, stay tuned to Leverage Edu.

Some basic concepts of Chemistry include the study of atoms, molecules, compounds, moles etc. which lays a strong foundation for other chapters of Class 11 and Class 12 Chemistry textbooks. The other vital topics included in Chapter 1 Class 11 Chemistry are:

For that reason, I decided to go ahead and explain here 15 important basic chemistry concepts, which hopefully will get you in a better shape for learning chemistry. These are clearly explained in most of the chemistry textbooks in our review.

We will start off with an introduction to basic chemistry: background on the most basic definitions of chemistry, a bit of history, and highlighting why and how chemistry is important. The basic units in chemistry will be defined: atoms, molecules, subatomic particles. Then, we will discuss them from a beginner point of view, and formulate them in the format of questions.

Disclaimer: This is not intended to be a comprehensive description of each concept, but rather an introduction to each of them: chemistry basics for beginners. We cite and include sources that we consider useful for expanding them further.

Very simple chemical processes were performed even during ancient history, at 1000 BC, much before any basic chemistry concepts or laws were actually established. Extraction of metals from ore or getting compounds out of natural sources such as plants, are examples of chemistry that was first performed thousands of years ago and are still a thing today.

A all sciences are glued together by basic chemistry concepts, thats why it is called the central science. Without chemistry, physical sciences (which include chemistry itself), would find a gap and not be bound to life sciences (such as biology) and applied sciences (such as engineering). This is important to note in any introduction to chemistry text.

There are three basic types of chemical compounds, and should be briefly introduced in this post about basic chemistry concepts. All of them are the result of bonding atoms together. The difference is in the nature of the forces that hold together those atoms.

Chirality is a geometric property of certain molecules. A molecule is said to be chiral when its mirror image is not superimposable to the molecule itself. The classical source of chirality in a (organic) compound is the presence of a carbon atom with four different substituents. The concept is far better explained by this basic chemistry youtube video:

The origin of chirality, together with the origin of life is one of the most relevant questions in, not only chemistry, but science in general, so it is not possible to answer in a straightforward manner. The main theory backing it up is based on homochirality, which could have emerged over three steps: mirror-symmetry breaking, chiral amplification and chiral transmission. This is far beyond basic chemistry concepts, but you can further read about it here.

Stoichiometry is a very basic chemistry concept. It is just a way of measuring or determining the amount of each substance that is involved in a reaction (reactants), and the amount of products that are generated.

Finally, I want to make an update with a 16th concept! This deserved a separate post, and here it is: A tutorial review on why chemicals react! If you are serious about learning chemistry, you need to master the basics behind the concepts of thermodynamics and kinetics.

To wrap up, I hope you all (or your students, or children) got something out of this. As I mentioned above, this is just a simple introduction to many basic chemistry concepts. If something is not clear enough, or want me to further develop or update any particular point, please, make sure to let me know.

Students your final exams are just around the corner. Students are busy with their last minute revisions and trying to get the most out of their study hours these days.

But you do not need to panic as out the team of experts at Meritnation has come up with some great insights into each chapter for your Chemistry exam. These key revision points and quick tips will help you prepare intelligently for the exams. Even if you have left out certain chapters for last minute preparations or revisions, these tips will help you get through them better.

In the scope of its subject, chemistry occupies an intermediate position between physics and biology.[6] It is sometimes called the central science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level.[7] For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).

A chemical reaction is a transformation of some substances into one or more different substances.[14] The basis of such a chemical transformation is the rearrangement of electrons in the chemical bonds between atoms. It can be symbolically depicted through a chemical equation, which usually involves atoms as subjects. The number of atoms on the left and the right in the equation for a chemical transformation is equal. (When the number of atoms on either side is unequal, the transformation is referred to as a nuclear reaction or radioactive decay.) The type of chemical reactions a substance may undergo and the energy changes that may accompany it are constrained by certain basic rules, known as chemical laws.

Energy and entropy considerations are invariably important in almost all chemical studies. Chemical substances are classified in terms of their structure, phase, as well as their chemical compositions. They can be analyzed using the tools of chemical analysis, e.g. spectroscopy and chromatography. Scientists engaged in chemical research are known as chemists.[15] Most chemists specialize in one or more sub-disciplines. Several concepts are essential for the study of chemistry; some of them are:[16]

The atom is the basic unit of chemistry. It consists of a dense core called the atomic nucleus surrounded by a space occupied by an electron cloud. The nucleus is made up of positively charged protons and uncharged neutrons (together called nucleons), while the electron cloud consists of negatively charged electrons which orbit the nucleus. In a neutral atom, the negatively charged electrons balance out the positive charge of the protons. The nucleus is dense; the mass of a nucleon is approximately 1,836 times that of an electron, yet the radius of an atom is about 10,000 times that of its nucleus.[18][19]

Thus, molecules exist as electrically neutral units, unlike ions. When this rule is broken, giving the "molecule" a charge, the result is sometimes named a molecular ion or a polyatomic ion. However, the discrete and separate nature of the molecular concept usually requires that molecular ions be present only in well-separated form, such as a directed beam in a vacuum in a mass spectrometer. Charged polyatomic collections residing in solids (for example, common sulfate or nitrate ions) are generally not considered "molecules" in chemistry. Some molecules contain one or more unpaired electrons, creating radicals. Most radicals are comparatively reactive, but some, such as nitric oxide (NO) can be stable. 2351a5e196