Would you be able to check if water is hard by using a detergent ?
Would you be able to check if water is hard by using a detergent ?
Detergents are ammonium or sulphonate salts of long chain carboxylic acids. Unlike soap, they do not react with calcium and magnesium ions present in hard water to form scum. They give a good amount of lather irrespective of whether the water is hard or soft. This means that detergents can be used in both soft and hard water. Therefore, it cannot be used to check whether the water is hard or not.
Similar Questions
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 ?
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 ?
Draw the structures for the following compounds
$(i)$ Butanone $(ii)$ Hexanal
Draw the structures for the following compounds
$(i)$ Butanone $(ii)$ Hexanal
How would you distinguish experimentally between an alcohol and a carboxylic acid ?
How would you distinguish experimentally between an alcohol and a carboxylic acid ?
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 $CH _{4}$
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 $CH _{4}$
Explain the mechanism of the cleaning action of soaps.
Explain the mechanism of the cleaning action of soaps.