A little poll

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A little poll


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Potassium Permanganate : The all rounder salt

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If you've seen a well being cleaned, you may have noticed that a reddish brown powder is thrown into it. That would be potassium permanganate, which is one of chemistry's most useful substances. The germ fighter Potassium permanganate is a strong oxidising agent when dissolved in water. KMnO 4 + H 2 O → MnO 2 + K + + OH - + O * The oxygen free radical is a powerful toxin, and kills off bacteria and fungi. That's why potassium permanganate is used to clean not just wells, but also fish tanks, water storage tanks, water pipes etc. You can use a dilute solution of KMnO 4 (which is pinkish red in colour) to treat mild skin infections, bruises, sores etc. But don't ever use it on cuts or deeper wounds. If you keep an aquarium, you can use a very mild solution to keep your fishes free from bacteria. It is used in laboratories, poultry farms and hospital wards as a fumigation agent to kill fungi. During fumigation, the cleaner puts one gram of potassium ...
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We know DNA. But what is RNA?

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We have all heard of DNA. But what exactly is RNA? RNA is similar to DNA in many ways at the structural level however; the differences that are present make RNA chemistry very different than that of DNA. We know DNA. But what is RNA? Almost everyone has heard of DNA and knows the role it plays in heredity. But another extremely important nucleic acid in the cell is RNA. RNA or Ribonucleic acid is similar to DNA in many ways at the structural level. However there are certain differences that are present in RNA chemistry that make it very different than DNA. What is RNA? RNA serves many functions in a cell and is typically a linear polymer that consists of a sugar-phosphate backbone with nitrogenous bases projecting off the backbone. This structure is very similar to DNA. Both of these nucleic acids carry genetic information, which is based on the order of the bases that are present along the chain of the molecule. The presence of a single atomic change in the...
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