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What acid is used for gold recovery
Sulfuric acid is used to extract gold and silver from integrated circuits in the recycling of electronic waste. Nitric acid (fortis water plus alcohol nitrate), industrial concentration 68% in water, removes base materials and is used in aqua regia. 32% hydrochloric acid is used in the processing of electronic waste and is the basis of some royal waters.
How do you recover gold after being eaten by muriatic acid
First, gold is placed in turquoise until completely dissolved. A small amount of urea can then be added with a precipitating agent, which often results in the dissolved gold turning into solid A. The gold, now free of impurities such as platinum, can be recovered by filtration. rinse and dry.
Which acid is weaker than benzoic acid p nitrobenzoic acid p methylbenzoic acid p chlorobenzoic acid chlorobenzoic acid
Answer: Acetic acid is weaker than benzoic acid mainly because the methyl group attached to acetic acid loses electron density per COO? which, according to experts, further destabilizes the anion. So the exact option is C.
Which of the following is Tetrabasic acid a orthophosphoric acid hypophosphorous acid Metaphosphoric acid pyrophosphoric acid
(pyrophosphoric acid) a is a tetrabasic acid that forms only four H+ ions.
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When glucose is heated with nitric acid the product is a lactic acid B saccharic acid C Glycollic acid D oxalic acid
Answer: 2) Sugar acid. Explanation: Glucose is oxidized, which contains nitric acid and gives sugar acid.
Which of the following is a diprotic acid * hydrochloric acid Sulphuric acid phosphoric acid nitric acid
The correct option is d) – the content of sulfuric acid. (a) Phosphoric acid: Phosphoric acid is basically a triprotonic acid.
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