How is hardness of water caused?



How is hardness of water caused?..

Answer / Avinash Mishra

Hardness in water results from the presence of calcium and magnesium ions. These ions come from the dissolution of rocks and minerals in the Earth's crust. Temporary hardness is caused by carbonates and bicarbonates, while permanent hardness is due to sulfates and chlorides.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More General Chemistry Interview Questions

What is meant by ph of a solution?

1 Answers  


Fresh form of water is obtained from?

1 Answers  


why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom.

2 Answers  


what is the valence of nitrogen?

10 Answers   GACL, TCS,


Why is starch indicator added towards the end point?

1 Answers  


Why does a piece of iron float on mercury, but sink in water ?

1 Answers  


which metal is found abundantly in the earths crust??

2 Answers  


When carbon is made to burn in an atmosphere of oxygen, what is produced ?

1 Answers  


Why is sodium preserved in kerosene oil ?

3 Answers  


Explain the structure of a dna molecule?

1 Answers  


At what temperature does mercury freeze ?

3 Answers  


What is hydrolysis ?

3 Answers  


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)