Hydrogen And Its Compounds Question 45

Question: Temporary hardness of water can be removed by

[Pb. PMT 2001]

Options:

A) Addition of potassium permagenate

B) Boiling

C) Filtration

D) Addition of chlorine

Show Answer

Answer:

Correct Answer: B

Solution:

By boiling temporary hardness of water can be removed. $ Ca{{(HCO_3)}_2}\xrightarrow{Boil}\underset{\text{(insoluble)}}{\mathop{CaCO_3}}+H_2O+CO_2 $