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General Properties of group–15 elements - E-Chemistry

General Properties of group–15 elements - E-Chemistry | Biology Content | Scoop.it
Group 15 elements consists of following elements Element Symbol Atomic Number Configuration 1. Nitrogen N 7 [He]2s22p3 2. Phosphorous P 15 [Ne]3s23p3 3. Arsenic As 33 [Ar]3d104s24p3 4. Antimony Sb 51 [Kr]4d105s2sp3 5. Bismuth Bi 83 [Xe]4fs145d106s26p3 Electronic configuration: The atoms of group 15 have 5 valence electrons in the outermost shell 2 in s Read More
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OZONE – PROS AND CONS

OZONE – PROS AND CONS | Biology Content | Scoop.it
Ozone is a rare formed oxygen. It has 3 oxygen atoms in it, arranged in a tiny triangle. The 3 atoms don’t get along well in this arrangement, so after some time ozone breaks up to release an atom. This atom can be quite dangerous, because it will react with almost anything. We all have Read More
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Characteristics of Chemical Reactions

Characteristics of Chemical Reactions | Biology Content | Scoop.it
A chemical reaction is a process in which new substances are formed with completely new properties. The substance which reacts in a chemical reaction are called reactant and the new substance produces as a result of chemical reaction are called products. But how can one identify or recognize that the reaction has been completed. So, Read More
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NUTRITION IN PARAMECIUM

NUTRITION IN PARAMECIUM | Biology Content | Scoop.it
Paramecium is a tiny unicellular organism found in water. It follows holozoic mode of nutrition. 1. Ingestion: Paramecium engulfs food by the use of cilia. Cilia is a hair like structure present on surface on body of paramecium. Food is ingested by cilia through oral groove into gullet. The food is ingested with a little Read More
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THE HUMAN BLOOD

THE HUMAN BLOOD | Biology Content | Scoop.it
Blood is a red coloured liquid that circulates in our body. The main components of blood are: 1. Plasma 2. Red Blood Corpuscles (RBC) 3. White Blood Corpuscles (WBC) 4. Platelets 1. Plasma: Plasma is a colourless liquid which consists of water and many substances like proteins, digested food etc are dissolved in it. RBC, Read More
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CHICKEN DEVELOPS DINOSAUR LIKE SNOUT - E-Biology

CHICKEN DEVELOPS DINOSAUR LIKE SNOUT - E-Biology | Biology Content | Scoop.it
Scientists have succeeded in creating a chicken embryo having dinosaur like snout. This is seen as a evolutionary evidence of birds from dinosaurs. The idea that birds evolved from dinosaurs has been raised since 19th century when the scientists discovered the fossil of an early bird Archaeopteryx. Archaeopteryx had wings and feathers like birds but Read More
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EQUATION OF A STRAIGHT LINE IN NORMAL FORM - E-Maths

EQUATION OF A STRAIGHT LINE IN NORMAL FORM - E-Maths | Biology Content | Scoop.it
Definition A normal to a line is a line segment drawn from a point perpendicular to the given line. Let p be the length of perpendicular form from the origin to a line, which...
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EQUATION OF A STRAIGHT LINE IN PARAMETRIC FOR

EQUATION OF A STRAIGHT LINE IN PARAMETRIC FOR | Biology Content | Scoop.it
Consider a line AB makes an angle with the positive direction of x – axis and a point on the line is . Let a general point P on the line AB and the...
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Class 6 Physic

Ephy.in is an initiative by ‘OnlinePadho.com’. As the name reflects, it is all about Physics. Here we aim to provide topic wise content of all chapters of Physics for class 6 to class 12....
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Class 8 Biolog

Ebiology.in is an initiative by ‘OnlinePadho.com’. As the name reflects, it is all about Biology. Here we aim to provide topic wise content of all chapters of Biology for class 6 to class 12....
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Class 6 Biolog

Ebiology.in is all about Biology. You can find content related to any topic between Class 6 to Class 12 for Biology.

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Why Do Old Books Become Yellow with Time

We all have seen that old books become yellow and brittle with time. This is due to the presence of lignin. As we know paper is made from wood, wood in turn is made of carbohydrates like cellulose and lignin. Lignin is very complicated molecule that adds hardness to wood. More the lignin, harder is Read More
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Expansion of Water Molecules After Freezing

Expansion of Water Molecules After Freezing | Biology Content | Scoop.it
Water is the most common liquid on earth which covers 71.4% of earth surface. It is the only chemical substance on earth that exists naturally in 3 states (solid, liquid and gas (vapors)). But there are some anomalies about water. Unlike most other liquids such as alcohol or oil, when water freezes, it expands by Read More
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PHOTOSYNTHESIS

PHOTOSYNTHESIS | Biology Content | Scoop.it
Photosynthesis is a process by which plant prepare their food from carbon dioxide and water with the help of sunlight in the presence of chlorophyll. About 90% of photosynthesis is carried out by aquatic plants. Word ‘Photosynthesis’ comprises of two words ‘photo’ & ‘synthesis. Photo means light and synthesis means preparation. Thus photosynthesis is a Read More
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STRUCTURE OF NUCLEOTIDE

STRUCTURE OF NUCLEOTIDE | Biology Content | Scoop.it
Nucleotides are the basic units of nucleic acids (DNA and RNA). Nucleic acids are biomolecules essential for all forms of life. A nucleotide has 3 components:  1. Pentose sugar 2. Nitrogenous base 3. Phosphate sugar Pentose Sugar It is a monosaccharide with 5 carbon atoms. It forms the backbone of polynucleotide chain. It is also Read More
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TREE THAT RELEASES OXYGEN ROUND THE CLOCK

TREE THAT RELEASES OXYGEN ROUND THE CLOCK | Biology Content | Scoop.it
Usually plants take CO2 and release oxygen during day (due to photosynthesis) and they take O2 and release carbon dioxide during night as a result of respiration. But it has been found that Peepal tree (scientific name Ficus religiosa) releases oxygen 24 hours a day. How is it possible that a plant releases oxygen throughout Read More
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cauchy's formula Archives - E-Physics

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It seems that the reflected ray don’t converge at a point but are distributed in a region. For a concave mirror only those parallel rays which are incident on the mirror near the vertex.

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DEFINITIONS OF IMPORTANT TERMS OF GENETICS - E-Biology

1. Alleles – Alleles are the different alternate form of a particular gene. (OR) Alleles are the genes that govern variations of the same characteristic and that occupy corresponding loci on homologous chromosomes. 2....
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MARKING SCHEME OF BIOLOGY CLASS XI

MARKING SCHEME OF BIOLOGY CLASS XI | Biology Content | Scoop.it
For all biology students it’s a challenge to score 100% marks on theory. So, for achieving the same one should know each and every terms of biology mentioned in NCERT books. Here is a...
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Class 6 Mathematic

Emaths.in is an initiative by ‘OnlinePadho.com’. As the name reflects, it is all about Mathematics. Here we aim to provide topic wise content of all chapters of Mathematics for class 6 to class 12....
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Class 7 Mathematic

Emaths.in is all about Mathematics. You can find content related to any topic between Class 6 to Class 12 for Mathematics.

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