Oxidation Reaction Carbon compounds can be easily oxidised on combustion. In addition to this complete oxidation, we have reactions in which alcohols are converted to carboxylic acids – We see that some substances are capable of adding oxygen to others. These substances are known as oxidising agents. Alkaline potassium permanganate or acidified potassium dichromate are …
Sugarcane plants are one of the most efficient converters of sunlight into chemical energy. Sugarcane juice can be used to prepare molasses which is fermented to give alcohol (ethanol). Some countries now use alcohol as an additive in petrol since it is a cleaner fuel which gives rise to only carbon dioxide and water on …
Effects of consumption of Wine : When large quantities of ethanol are consumed, it tends to slow metabolic processes and depress the central nervous system. This results in a lack of coordination, mental confusion, drowsiness, lowering of the normal inhibitions, and finally stupor.The individual may feel relaxed without realising that his sense of judgement, sense …
Saturated hydrocarbons will generally give a clean flame while unsaturated carbon compounds will give a yellow flame with lots of black smoke. This results in a sooty deposit on the metal plate . However, limiting the supply of air results in incomplete combustion of even saturated hydrocarbons giving a sooty flame. The gas/kerosene stove used …
Colour of combustion of saturated and unsaturated hydrocarbon Read More »
Combustion Reaction Definition A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 as one reactant. The combustion of hydrogen gas produces water vapour. Carbon, in all its allotropic forms, burns in oxygen to give carbon dioxide …
Coal and petroleum have been formed from biomass which has been subjected to various biological and geological processes. Coal is the remains of trees, ferns, and other plants that lived millions of years ago. These were crushed into the earth, perhaps by earthquakes or volcanic eruptions. They were pressed down by layers of earth and …
We ever observed either a coal or a wood fire. what happens when the wood or coal starts to burn. You have seen above that a candle or the LPG in the gas stove burns with a flame. However, you will observe the coal or charcoal in an ‘angithi’ sometimes just glows red and gives …
Nomenclature of Carbon Compounds The names of compounds in a homologous series are based on the name of the basic carbon chain modified by a “prefix” “phrase before” or “suffix” “phrase after” indicating the nature of the functional group. For example, the names of the alcohols are methanol, ethanol, propanol and butanol. Naming a carbon …
What is Isomerism ? “Isomerism is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures.“ Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called isomers. Therefore, the compounds that exhibit isomerism are known as isomers. …
What is isomerism ? also write properties of isomerism. Read More »
Homologous Series Definition “Homologous series refers to a series of compounds with the same functional group and also similar chemical properties.“ Meaning of Homologous Series A homologous series refers to a series of carbon compounds which have a different number of carbon atoms. However, they contain the same functional group. In this series, a group …
What are the Homologous Series and its properties? Read More »
