Give the chemical name and chemical formulae of the following:
(a) A reddish brown deposit formed on iron nail on exposure to damp air
(b) A greenish layer formed on copper articles on long exposure to air.
(c) A blackish tinge formed on silver vessels
(ii) Also mention condition/conditions necessary for their formation in each case.
(iii) Name the process involved and define it.
Answers
Answered by
2
Explanation:
A bookseller has 210 Science stream
books and 55 Arts stream books. He wants
to stack them in such a way that each stack
has the same numbers and they take up
the least area of the surface. If the
maximum number of books that can be
placed in each stack for this purpose is in
the form of 210 x5 +55y, then find the
value of y
Answered by
1
Answer:
a)Copper sulphate=CuSO4
b) Copper carbonate=CUCO3
c) Silver sulphide=Ag2S
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