Which of the following can effectively remove | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Soap is a sodium or potassium salt of long-chain fatty acids (e.g.,sodium stearate,$C_{17}H_{35}COONa$).When soap is added to hard water,it reacts

Vedclass · Accepted Answer

Soap

Vedclass · Answer

(A) Soap is a sodium or potassium salt of long-chain fatty acids (e.g.,sodium stearate,$C_{17}H_{35}COONa$).When soap is added to hard water,it reacts with the calcium $(Ca^{2+})$ and magnesium $(Mg^{2+})$ ions present in the water to form insoluble precipitates (scum),such as calcium stearate.This process effectively removes the hardness-causing ions from the water,although it is not an economical method for large-scale water softening.

Which of the following can effectively remove all types of hardness of water?

Similar Questions

The most effective water softening method is

Which pairs of ions are responsible for hardness of water?

Which of the following is not true?

Observe the following statements:
$1.$ Heavy water is harmful for the growth of animals.
$2.$ Heavy water reacts with $Al_4C_3$ and forms $\text{deuterated acetylene}$.
$3.$ $BaCl_2 \cdot 2D_2O$ is an example of $\text{interstitial deuterate}$.
The correct statements are:

The hardness-producing salt whose solubility in water decreases with a rise in temperature is

Vedclass Test Series

Exam Paper Generator

Online Exam Module