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In the Nalgonda method, chemicals used f...

In the Nalgonda method, chemicals used for defluoridation of water in correct order are

A

`CaO + CaOCl_2`

B

`CaOCl_2 + CaO + " Alum "`

C

`CaO + CaOCl_2 + " Alum `

D

Any of the above

Text Solution

Verified by Experts

The correct Answer is:
B
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