How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties ?
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 a molecule of sulphur which is made up of eight atoms of sulphur ?
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 $CH _{4}$
What change will you observe if you test soap with litmus paper (red and blue)?