Question

explain Stannated hydrochloric acid in the limit test of arsenic​

Answer 1

Answer:

Arsenic, present as arsenic acid in the sample is reduced to arsenious acid by reducing agents like potassium iodide, stannous acid, zinc, hydrochloric acid, etc. Arsenious acid is further reduced to arsine (gas) by hydrogen and reacts with mercuric chloride paper to give a yellow stain.

Explanation:

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Answer 2

Answer:

however the image is inverted and real if it's below the principal axis and is the same size as the answer in the focal length of a convex lens is 20 cm what is the same size as the answer in the focal length of a convex lens is 20 cm