Why are carbon and its compounds used as fuels for most applications ?
Most of the carbon compounds give a lot of heat and light when burnt in air. Saturated hydrocarbons burn with a clean flame and no smoke is produced. The carbon compounds, used as a fuel, have high calorific values. Therefore, carbon and its compounds are used as fuels for most applications.
Which of the following hydrocarbons undergo addition reactions :
$C _{2} H _{6}, \,C _{3} H _{8},\,C _{3} H _{6}, \,C _{2} H _{2}$ and $CH _{4}$
Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons.
People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes ?
What would be the electron dot structure of carbon dioxide which has the formula $CO _{2}$ ?
What are oxidising agents ?