Permanent hardness of water can be removed by adding
1 Potassium permanganate
2 Chlorine
3 Bleaching powder
4 Washing soda
Answer Posted / suganthi
washing soda
| Is This Answer Correct ? | 45 Yes | 11 No |
Post New Answer View All Answers
Do you have any idea about Common wealth games? In which year they will be held?
state the seven wonders of the world which is located in india?
how much period of time to consider the current affairs(appsc group-2 perpose)
Who are the recent Bharat Ratna awardees?
please send rrb assistant station master model question paper
state the opposite of asperity?
How many meaningful English words can be made from the letters EOPR, using each letter only once?
What abt question in indian oil
India conducted Military Exercise Garuda Sakthi with which state?
who was the first mughal emperor of india?
which is the highest mountain in the world?
what is non cenvatable duty? How it can be calculated? Is it difers from item to item?
what is aql
Sir,I am rajkumar..I can completed b.tech with it branch i can apply for entrance exan ONGC graduation daharadun.In this exam sep 18.Its ok but iknow doubt sir...in this exam 1)general awarness butgeneral awareness and knowlege it same syllabus sir.... and how prepare general awareness ongc exam ....ple guid me sir send email chilukoti.rajkumar@gmail.com.and what books can be prepare tell fast sir..send me... thank you
Supreme court judgment regarding 11 kv line running through former land