Why is hard water not suitable for washing clothes with soap?
(N/A) Hard water contains dissolved salts of calcium and magnesium,specifically their bicarbonates,chlorides,and sulphates. When soap (which consists of sodium or potassium salts of long-chain fatty acids) is added to hard water,these calcium and magnesium ions react with the soap molecules to form insoluble precipitates known as scum. Because the soap molecules are consumed in this chemical reaction to form scum,they are no longer available to form micelles and perform the cleansing action on clothes.
Explore More
Similar Questions
The molecular formula of $A$ is $C_{10}H_{18}$ and $B$ is $C_{18}H_{36}$. Name the homologous series to which they belong.
Easy
View SolutionAlkynes may be represented by the general formula:
Easy
View SolutionThe correct electron dot structure of a water molecule is:
Medium
View Solution$(a)$ Differentiate between soap and detergent.
$(b)$ Explain why soaps form scum with hard water,whereas detergents do not.
$(b)$ Explain why soaps form scum with hard water,whereas detergents do not.
Medium
View Solution$A$ compound $C$ (molecular formula $C_2H_4O_2$) reacts with $Na$ metal to form a compound $R$ and evolves a gas which burns with a pop sound. Compound $C$ on treatment with an alcohol $A$ in the presence of an acid forms a sweet-smelling compound $S$ (molecular formula $C_3H_6O_2$). On addition of $NaOH$ to $C$,it also gives $R$ and water. $S$ on treatment with $NaOH$ solution gives back $R$ and $A$. Identify $C$,$R$,$A$,$S$ and write down the reactions involved.
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo