318609 A water sample has ppm level concentration of the following metals: $\mathrm{Fe}=0.2,\mathrm{Mn}=5.0,\mathrm{Cu}=$ $3.0,\mathrm{Zn}=5.0$. The metal that makes the water sample unsuitable for drinking is

318610 The reagent used to detect fluoride present in water is

318612 The concentration of sodium fluoride amongst the following that may cause fluorosis, is

318609 A water sample has ppm level concentration of the following metals: $\mathrm{Fe}=0.2,\mathrm{Mn}=5.0,\mathrm{Cu}=$ $3.0,\mathrm{Zn}=5.0$. The metal that makes the water sample unsuitable for drinking is

318610 The reagent used to detect fluoride present in water is

318611 Water becomes useless for drinking purpose if the flouride concentration exceeds

318612 The concentration of sodium fluoride amongst the following that may cause fluorosis, is

318609 A water sample has ppm level concentration of the following metals: $\mathrm{Fe}=0.2,\mathrm{Mn}=5.0,\mathrm{Cu}=$ $3.0,\mathrm{Zn}=5.0$. The metal that makes the water sample unsuitable for drinking is

318610 The reagent used to detect fluoride present in water is

318611 Water becomes useless for drinking purpose if the flouride concentration exceeds

318612 The concentration of sodium fluoride amongst the following that may cause fluorosis, is

318609 A water sample has ppm level concentration of the following metals: $\mathrm{Fe}=0.2,\mathrm{Mn}=5.0,\mathrm{Cu}=$ $3.0,\mathrm{Zn}=5.0$. The metal that makes the water sample unsuitable for drinking is

318610 The reagent used to detect fluoride present in water is

318611 Water becomes useless for drinking purpose if the flouride concentration exceeds

318612 The concentration of sodium fluoride amongst the following that may cause fluorosis, is