Question

sodium sulphide in used in which of the test of heavy metals

Answer please​

Answer 1

Answer:

Limit test of heavy metals is based on the reaction of metallic impurities with hydrogen sulfide in acidic medium to form colored solution. Metals that response to this test are lead, mercury, bismuth arsenic, antimony, tin, cadmium, silver, copper, and molybdenum.

Explanation:

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