Permanent hardness of water may be removed by the addition of
1 Alum
2 Sodium carbonate
3 Lime
4 Potassium permanganate
- 3 Answers
- 13513 Views
- SSC, I also Faced
- E-Mail Answers
Answer Posted / jayant agarwal
1. Alum
Is the answer as permanent hardness can be removed only by sulphate or chloride compounds.
| Is This Answer Correct ? | 11 Yes | 3 No |
Post New Answer View All Answers
The Purest form of water can be obtained from:- I) a deep tube well II) a running stream III) a hot water spring IV) a heavy shower of rain
When a person sends a message to someone with the Internet, there are steps that happen to the recipient to receive the message. How does the recipient know that the message was not edited by someone else?
Why is ice wrapped in gunny sacks to prevent it from melting
Explain the role of Science for sustainable Development
What is meant by Incidental Correlation?
Who was the first cosmonaut?
if appointed at aryabhatt school for how long should we expect you work with us
Define science
Describe the evolution of science and its impact on society
How many astronauts travelled in the challenger?
how longs & what conditions will a matter, say for example U, after an atomic explosion and was converted completely into energy will again condensed back into a matter named U'
What is practical frequency. ? How create a frequency band?
Which was the international geo - physical year?
what are the advantages and disadvantages of rational knowledge?
What are comets?
