The water having more


The water having more dissolved $\mathrm{O}_{2}$ is :

  1. boiling water

  2. water at $80^{\circ} \mathrm{C}$

  3. polluted water

  4. water at $4^{\circ} \mathrm{C}$

Correct Option: 4,


On heating concentration of $\mathrm{O}_{2}$ in water decreases. So boiling water and water at $80^{\circ} \mathrm{C}$ having less $\mathrm{O}_{2}$ concentration. Polluted water also having less $\mathrm{O}_{2}$ concentration. So water at $4^{\circ} \mathrm{C}$ having maximum $\mathrm{O}_{2}$ concentration.

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