Mottling of teeth is associated with the presence of Environmental Engineering Mcqs October 16, 2019 BILAL KHATTAK0 A.Chloride in water B.Calcium in water C.Sodium chloride in water D.Sulphur in water E.Fluorides in water Related Mcqs: Which of the following impurities in the crude petroleum is the most prolific producer of HCI during distillation? What is most common salt in sea water: Which of the following is not a dehydrator? Reaction between neutral solution of barium chloride and sodium carbonate goes to completion because Major constituent of bone is: Brackish taste of water is due to An impulse will travel through a nerve fibre only if the membrane becomes more permeable to ions of: Which of the following material is not used for cyaniding? Which of the following minerals is maximum in the bone: An acidic buffer solution can be prepared by mixing solution of: