As per IS 10500-2012, which of the following Pollutant(s) have some relaxation in their Acceptable Limits in the absence of alternate sources of water?
(i) Aluminium (as Al)
(ii) Ammonia (as total ammonia-N)
(iii) Barium (as Ba)
(iv) Boron (as B)
1
Only (i)
2
(i) and (iv)
3
(iii) and (iv)
4
(i) and (ii)
5
Question Not Attempted