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Question

What is the difference between sulphate and sulphide?

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Solution

Sulfates, also spelled sulphates, are used in a variety of common products and processes. Sodium lauryl sulfate is a strong detergent used for removing oils and grease and is found in household cleaning products, face and body washes and shampoos. Sodium sulfate is used in the manufacturing of glass and paper. Zinc sulfate is used to preserve wood.
Sulfides, also spelled sulphides, come in three classes: organic sulfides, inorganic sulfides and phosphine sulfides. Organic sulfides are compounds in which sulfur is bonded to two organic groups. Inorganic sulfides are ionic compounds or salts which contain a negatively charged sulfide ion. Phosphine sulfides occur when the sulfur atom reacts with organic phosphines. Examples of sulfides include zinc, copper, silver and mercury.
Sulphide ion → S2-

Sulphate ion → SO4 2-

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