A chemical compound is a pure chemical substance consisting of two or more different chemical elements and have a unique and defined chemical structure. These compounds consist of a fixed ratio of atoms that are held together in a defined spatial arrangement bychemical bonds. Different kindso of chemical compounds have different kind of bonding. For example some can be molecular compounds held together by covalent bonds where [...]
Test Your Knowledge on Carbons and its Compunds
January 13, 2012 by
Carbon is an element found in elemental form and in the combined form.The compounds containing carbon are , in most case , associated with hydrogen . For example hydrocarbons are fuels that produce heat on burning. Carbon compounds are used in some form in almost all aspects of our daily life as we have seen earlier.So [...]
10 Simple Quizzes on Electric Current Objective Type Questions
January 9, 2012 by
Electric current is a flow of electric charge through a medium is measured as the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes. Electric current is measured using an ammeter.The standard abbreviations for the units of current are 1 A = 1C/s. This charge is typically carried by moving electrons in a conductor such as wire. It [...]
