Permanent hardness of water is due to the presence of

Permanent hardness of water is due to the presence of
1). Sulphates of sodium and potassium
2). Sulphates of magnesium and calcium
3). Carbonates of sodium and?magnesium
4). Bicarbonates of magnesium?and calcium

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (2+3)
Submit:

Other Questions

1. Question 16.3:Name the macromolecules that are chosen as drug targets.

2. What is the maximum Water Vapour content in the atmosphere

3. German silver used for making utensils is an alloy of

4. Which among the following compounds has the strongest hydrogen bond?

5. Alum is used as

6. Which of the following has pH value 7?

7. An electric iron has a heating element made of:

8. Which one of the following contributes largely to the ‘green house effect’ ?

9. Which of the following metals causes Itai-Itai disease ?

10. Question 2.24:Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Cyclohexane, KCl, CH3OH, CH3CN.