11 swimming pool water can be kept free of harmful bacteria by adding aqueous sodium chlorate(i),naocl. this reacts with water to produce hocl molecules which kill bacteria. ocl–(aq) h2o(reversible) oh–(aq) hocl (aq)in bright sunshine, the ocl– ion is broken down by ultra-violet lightocl–(aq) uv light → cl–(aq) ½o2(g)which method would maintain the highest concentration of hocl (aq)? a acidify the pool waterb add a solution of chloride ionsc add a solution of hydroxide ionsd bubble air through the water