Question

Question
Study the given diagram and answer the following
questions:
(a) Write the chemical reaction involved in the
process
(b) Mention the colour of:
1. copper powder and
2. the substance formed after heating it.
(c) How can we reverse the above reaction ? Write
the equation for the reverse reaction and state the
substance that undergoes oxidation and the
substance that undergoes reduction,
​

Answer 1

Explanation:

a. Chemical reactions involved in the process of extraction of Gold : Dilute NaCN is used for leaching the metal forming an aurocyanide complex. Zn acts as a reducing agent in the extraction of gold from complex.

b.  1 . (a) Copper powder upon heating reacts with oxygen (present in air) to form cupric oxide or copper

(II) oxide.

hope it will help you.

please mark me as a brainliest.