A) \[{{(RCOO)}_{2}}Ca\]
B) \[{{(RCOO)}_{2}}Mg\]
C) Both (a) and (b)
D) None of these
Correct Answer: C
Solution :
Hardness in water is due to dissolved sulphates, chlorides and bicarbonates of calcium and magnesium. When such type of water is used for cleaning clothes with soap (i.e., sodium stearate) a curdy precipitate of calcium and magnesium salts are formed. \[\underbrace{RCOONa}_{\text{soap}}+\underbrace{C{{a}^{2+}}or\,M{{g}^{2+}}}_{\text{in}\,\text{hard}\,\text{water}}\xrightarrow{{}}\] \[{{(RCOO)}_{2}}Ca\]or Mg Cardy precipitate
You need to login to perform this action.
You will be redirected in
3 sec
