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Showing posts with the label SSC Chemistry

### What is a median in math?

What is a median in math? The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. Median is the middle number in a sorted list of numbers. To determine the median value in a sequence of numbers, the numbers must first be sorted, or arranged, in value order from lowest to highest or highest to lowest. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. If there is an even amount of numbers in the list, the middle pair must be determined, added together, and divided by two to find the median value. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.  You may like What is manifesting? What is electric Charge? What is Binary? What is physics? What is pH scale? What is quantum mechanics?

### The importance of Studying Chemistry

The importance of Studying Chemistry Imagine what happens on a typical day with you You use toothpaste, once you get up from bed in the morning. Then you start reading your books. Your mother serves you biscuits and tea. After finishing that, you take your bath. When you enter the washroom, you find it a bit unclean. You use toilet cleaner to clean it and then have a bath using scented soap and shampoo. You use lotions after a bath. Then you take your breakfast and go to school. The teacher there uses chalk on the board to simplify your lessons. Now, do you see, all the things you are using, e.g. paste, tea, toilet cleaner, soap, shampoo, chalk, etc. are contributions of chemistry. Not only that, we use fertilizers to increase the fertility of fields, use insecticides to keep away insects from our crops, preservatives to store the food for a longer time. This way, the whole process of food and cultivation is dependent on chemistry. Today, cholera, typhoid, tuberculosis, etc. are curabl

### The relationship Between Chemistry and other Branches of Science

The relationship Between Chemistry and other Branches of Science There are various branches of science like chemistry, biology, physics, mathematics, environmental science, soil science, etc. Each of these branches is related to the other branches. Very much like the other branches are related to chemistry, so is chemistry related to the other branches. Let us now check the relationship with examples. Relationship with Biology: All plants produce glucose on their green parts in the photosynthesis process. Photosynthesis is basically a chemical process. Plants take in carbon dioxide from the air and water from the soil. Then it uses the chlorophyll of its green parts to produce glucose in the reaction between water and carbon dioxide. Animal bodies synthesize the proteins of animals' intake and produce glucose, amino acid, etc. All animal bodies are indeed stuffed with various chemicals. Biology discusses these chemicals and chemical reactions that take place inside the bodies of

### The Scopes of Chemistry

The Scopes of Chemistry Wherever there is an element, there is chemistry. Various gaseous elements are there in the air. There are continuous chemical changes occurring in the air. The same is there in the soil we are living on. It happening now, it happened in the ancient days too. The earth was highly heated at the moment of its creation. There was no wind, nor any animal. It took millions of years of chemical reactions for the creation of the atmosphere, water, and thousands of other elements. These altogether contributed to the habitability of the earth for animals. All animals including human beings have microscopic lives like bacteria, amoeba, huge trees and animals have bodies that contain various kinds of chemicals. Each body is a kind of chemical factory where chemical reactions are taking place every moment. We live because of these chemical reactions. Again, with the advent of civilization, humans have produced various necessary items and products by means of chemical reacti

### Chemistry in Our Lives

Chemistry Chapter - 12: Chemistry in Our Lives ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   12.1 Domestic Chemistry / House hold Chemistry 12.2 Chemistry for Cleanliness 12.3 Chemistry in Agriculture and Industries Question Bank 12.1 Domestic Chemistry / Household Chemistry * 12.2 Chemistry for Cleanliness * 12.3 Chemistry in Agriculture and Industries * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Mineral Resources: Fossils

Chemistry Chapter - 11: Mineral Resources: Fossils ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   11.1 Fossil Fuel 11.2 Hydrocarbons 11.3 Saturated Hydrocarbons: Alkanes 11.4 Unsaturated Hydrcarbons: Alkenes andAlkynes 11.5 Alcohols, Aldehydes and Fatty Acids 11.6 The Uses of Alcohol, Aldehydes and Organic Acids 11.7 Polymers Question Bank 11.1 Fossil Fuel * 11.2 Hydrocarbons * 11.3 Saturated Hydrocarbons: Alkanes * 11.4 Unsaturated Hydrocarbons: Alkenes and Alkynes * 11.5 Alcohols, Aldehydes and Fatty Acids * 11.6 The Uses of Alcohol, Aldehydes and Organic Acid * 11.7 Polymers * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resource

### Mineral Resources: Metal - Nonmetal

Chemistry Chapter - 10: Mineral Resources: Metal and Nonmetal ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   10.1 Mineral Resources 10.2 Metal Extraction 10.3 Selected Alloys 10.4 Symptoms, Causes and Prevention of Corrosion of Certain Metals and Alloys 10.5 Nonmetal Minerals Question Bank 10.1 Mineral Resources * 10.2 Metal Extraction * 10.3 Selected Alloys * 10.4 Symptoms, Causes and Prevention of Corrosion of Certain Metals and Alloys * 10.5 Nonmetal Minerals * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Acid-Base Balance

Chemistry Chapter - 9: Acid-Base Balance ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   9.1 Acid 9.2 Base and Alkali 9.3 Corrosive Properties of Concentrated Acids and Alkali 9.4 The Concept of pH 9.5 Neutralization Reaction 9.6 Acid Rain 9.7 Water Question Bank 9.1 Acid * 9.2 Base and Alkali * 9.3 Corrosive Properties of Concentrated Acids and Alkali * 9.4 The Conception of Ph * 9.5 Neutralization Reaction * 9.6 Acid Rain * 9.7 Water * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Chemistry and Energy

Chemistry Chapter - 8: Chemistry and Energy ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   8.1 Chemical Energy 8.2 Uses of Chemical Energy 8.3 Chemical Process by Electricity 8.4 Production of Electricity  by Chemical Reactions 8.5 Nuclear Reactions and Generation of Electricity Question Bank 8.1 Chemical Energy * 8.2 Uses of chemical Energy * 8.3 Chemical Process by Electricity * 8.4 Production of Electricity by Chemical Reactions * 8.5 Nuclear Reactions and Generation of Electricity * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Chemical Reactions

Chemistry Chapter - 7: Chemical Reactions ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   7.1 Changes of Matter 7.2 Classification of Chemical Reactions 7.3 Special Types of Chemical Reactions 7.4 Examples of a Few Real Life Chemical Reactions 7.5 Rate of Reaction Question Bank 7.1 Changes of Matter * 7.2 Classification of Chemical Reactions * 7.3 Special Types of Chemical Reactions * 7.4 Examples of a Few Real Life Chemical Reactions * 7.5 Rate of Reaction * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Concept of Mole and Chemical Counting

Chemistry Chapter - 6: Concept of Chemical Counting ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   6.1 Mole 6.2 The Percentage Composition of Elements in Compounds 6.3 Chemical Reactions and Chemical Equations 6.4 Limiting Reactant 6.5 Calculation of the Percentage of Yield Question Bank 6.1 Mole * 6.2 The Percentage Composition of Elements in Compounds * 6.3 Chemical Reactions and Chemical Equations * 6.4 Limiting Reactant * 6.5 Calculation of the Percentage of Yield * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter - 10 :  Mineral Resources: Metal - Nonmetal Chapter - 11 :  Mineral Resources: Fossils Chapter - 12 :  Chemistry in Our Lives

### Chemical Bond

Chemistry Chapter - 5: Chemical Bond ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   5.1 Valence Electrons 5.2 Valency 5.3 Radicals and Their Valencies 5.4 Chemical Formula of Compounds 5.5 Molecular Formula and Structural Formula 5.6 Octet and Duet Rules 5.7 Inert Gases and Their Stability 5.8 Chemical Bonds and the Causes of their Formation 5.9 Cations and Anions 5.10 Ionic Bond or Electrovalent Bond 5.11 Covalent Bonds 5.12 Characteristics of Ionic and Covalent Bonds 5.13 Metallic Bonds Question Bank 5.1  Valence Electrons * 5.2  Valency * 5.3  Radicals and Their Valencies * 5.4  Chemical Formula of Compounds * 5.5 Molecular Formula and Structural Formula * 5.6 Octet and Duet Rules * 5.7 Inert Gases and their Stability * 5.8 Chemical Bonds and the Causes of their Formation * 5.9 Cations and Anions * 5.10 Ionic Bond or Electrovalent Bond * 5.11 Covalent Bonds * 5.12 Characteristics of Ionic and Covalent Bonds * 5.13 Metallic Bonds * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter

### Periodic Table

Chemistry Chapter - 4: Periodic Table ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   4.1 Background of Periodic Table 4.2 Characteristics of the Periodic Table 4.3 Determination of the Position of Elements in the Periodic Table from Their Electronic Configuration 4.4 Electronic Configurations of Elements are the Main Basis of the Periodic Table 4.5 Some Exceptions in the Periodic Table 4.6 Periodic Properties of Elements 4.7 The Special Names of Elements Present in Various Groups 4.8 Advantages of the Periodic Table 4.9 Reactions Occurring in the Elements of the Same Group Question Bank 4.1 Background of Periodic Table * 4.2 Characteristics of the Periodic Table * 4.3 Determination of the Position of Elements in the Periodic Table from Their Electronic Configuration  * 4.4 Electronic Configurations of Elements are the Main Basis of the Periodic Table * 4.5 Some Exceptions in the Periodic Table * 4.6 Periodic Properties of Elements * 4.7 The Special Names of Elements Present in Various Group * 4.8

### Structure of Matter

Chemistry Chapter - 3: Structure of Matter ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   3.1 Elements and Compounds 3.2 Atoms and Molecules 3.3 Symbols of Elements 3.4 Formula 3.5 The Particles Inside an Atom 3.6 Atomic Model 3.7 Orbital Electronic Configuration of Atoms 3.8 Isotopes 3.9 Atomic Mass or Relative Atomic Mass 3.10 Radioactive Isotopes and Their Uses Question Bank 3.1  Elements and Compounds * 3.2 Atoms and Molecules * 3.3 Symbols of Elements * 3.4 Formula * 3.5 The Particles Inside an Atom * 3.6 Atomic Model * 3.7 Orbital Electronic Configuration of Atoms * 3.8 Isotopes * 3.9 Atomic Mass or Relative Atomic Mass * 3.10 Radioactive Isotopes and Their Uses * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base

### States of Matter

Chemistry Chapter - 2: States of Matter ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   2.1 Three States of Matter 2.2 Kinetic Theory of Particles 2.3 Diffusion 2.4 Effusion 2.5 Burning of a Candle and the Three States of Wax 2.6 Melting and Boiling 2.7 Distillation and Sublimation Question Bank 2.1  Three States of Matter * 2.2  Kinetic Theory of Particles * 2.3 Diffusion * 2.4 Effusion * 2.5 Burning of a Candle and the Three States of Wax * 2.6 Melting and Boiling * 2.7 Distillation and Sublimation * Secondary Chemistr y Chapter - 1 : Concept of Chemistry Chapter - 2 : States of Matter Chapter - 3 : Structure of Matter Chapter - 4 : Periodic Table Chapter - 5 : Chemical Bond Chapter - 6 : Concept of Mole and Chemical Counting Chapter - 7 : Chemical Reactions Chapter - 8 : Chemistry and Energy Chapter - 9 : Acid-Base Balance Chapter - 10 : Mineral Resources: Metal - Nonmetal Chapter - 11 : Mineral Resources: Fossils Chapter - 12 : Chemistry in Our Lives

### Concepts of Chemistry

Chemistry Chapter - 1: Concept of Chemistry ðŸ‘‰   All Chapter Contents   ðŸ‘ˆ   1.1 Introduction to Chemistry 1.2 The Scopes of Chemistry 1.3 Relation Between Chemistry and Other Branches of Science 1.4 The importance of Studying Chemistry 1.5 The Process of Research in Chemistry 1.6 Safety Measures in Chemistry Laboratory and in use of Chemicals Question Bank 1.1  Introduction to Chemistry * 1.2  The Scopes of Chemistry * 1.3  Relation Between Chemistry and Other Branches of Science * 1.4  The Importance of Studying Chemistry * 1.5  The Process of Research in Chemistry * 1.6  Safety Measures in Chemistry Laboratory and in use of Chemicals * Secondary Chemistr y Chapter - 1 :  Concept of Chemistry Chapter - 2 :  States of Matter Chapter - 3 :  Structure of Matter Chapter - 4 :  Periodic Table Chapter - 5 :  Chemical Bond Chapter - 6 :  Concept of Mole and Chemical Counting Chapter - 7 :  Chemical Reactions Chapter - 8 :  Chemistry and Energy Chapter - 9 :  Acid - Base Balance Chapter -