Which of the following methods is used for th | vedclass

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

Question

(D) Temporary hardness of water is caused by the presence of magnesium and calcium bicarbonates,$Mg(HCO_3)_2$ and $Ca(HCO_3)_2$.Clark's method involve

Vedclass · Accepted Answer

Clark’s method

Vedclass · Answer

(D) Temporary hardness of water is caused by the presence of magnesium and calcium bicarbonates,$Mg(HCO_3)_2$ and $Ca(HCO_3)_2$.Clark's method involves the addition of calculated amounts of lime,$Ca(OH)_2$,to the water.This process precipitates the bicarbonates as insoluble carbonates: $Ca(HCO_3)_2 + Ca(OH)_2 \rightarrow 2CaCO_3(s) + 2H_2O(l)$ and $Mg(HCO_3)_2 + 2Ca(OH)_2 \rightarrow 2CaCO_3(s) + Mg(OH)_2(s) + 2H_2O(l)$.Therefore,Clark's method is specifically used for the removal of temporary hardness.

Which of the following methods is used for the removal of temporary hardness of water?

Similar Questions

Water is said to be permanently hard when it contains

What properties of water make it useful as a solvent? What types of compounds can it $(i)$ dissolve and $(ii)$ hydrolyse?

Assertion $(A)$ : $NaCl$ is less soluble in heavy water than in ordinary water.
Reason $(R)$ : Dielectric constant of ordinary water is more than that of heavy water.
The correct answer is

$D_2O$ is used more in

Explain: Proton $(H^{+})$ does not exist in aqueous solution.

Vedclass Test Series

Exam Paper Generator

Online Exam Module