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Some Important Facts to know
Scientists connected with improvement of crop varieties are called Plant Breeders. Triticale has been developed through hybridization between Wheat and Rye. A Gene Bank is an institution where valuable plant material likely to be lost in cultivation is preserved in a viable condition, as se..
The Importance of Osmosis in Plants
In the absorption of water by plants Cell to cell movement of water occurs throughout the plant body The rigidity of plant organs is maintained Leaves become turgid and expand due to osmotic pressure Growing points of root remain turgid and penetrate the soil particles The resistan..
Electronic configurations of some important elements
Element Symbol Atomic number Electronic configuration (or Electron arrangement) KLMN Hydrogen H 1 1 Helium He 2 2 Lithium Li 3 2,1 Beryllium Be 4 2,2 Boron B 5 2,3 Carbon C 6 2,4 Nitrogen N 7 2,5 Oxygen O ..
Some Important Forms of Alcohol
Absolute alcohol or anhydrous alcohol (100% alcohol) is prepared by adding a little benzene to the rectified spirit followed by distillation. Ordinary rectified spirit is called industrial alcohol. To ensure that industrial alcohol is not used for human consumption, poisonous materials like methano..
Important Terms Related with Electrolysis
Conductors All metals possess a large number of free electrons. Under ordinary conditions, these electrons move randomly in such a way that the net flow of charge across any section of the metal conductor is zero. Thus a conductor is void of any charge as such. But when the free electr..
Importance of dipole moment and problems
The measurement of dipole moment helps in distinguishing between polar and non-polar molecules. Non-polar molecules have zero dipole moment while polar molecules have some value of dipole moment. For example: Non-polar molecules: O 2 , Cl 2 , BF 3 , CH 4 Polar Molecules: HF (1.91 D), HCl (1.03 ..
Important Feature of Resonance
The various contributing structures should have the same arrangements of structures but may differ only in electronic arrangements. The number of unpaired of electrons in all the contributing structures should be the same. All contributing structures should have almost the same energy. T..
Importance of Chemicals in Food
Actually speaking, natural food substances are various forms of chemicals. For e.g., rice is a carbohydrate. Fruits contain carbohydrates and acids like citric acid. Vegetables contain proteins (amino acid blocks) and vitamins. Besides these, chemicals are also used as preservatives for canned or b..
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