Question

Allinone SCIENCE Class 10th
(2 Marks each)
20. In the given reaction:
2KAg(CN)2, +Zn=2Ag + K2 Zn(CN)4
Write the oxidising and reducing agent.
21. Take a rod of metallic zinc clean it well with a sand
paper and then place it in a solution of copper nitrate in
a beaker. What changes are observed? Write the
chemical reaction also.
[3 Marks each)​

Answer 1

Answer:

Potassium dicyanoargentate(I) react with zinc

2K[Ag(CN)2] + Zn → K2[Zn(CN)4] + 2Ag

Source: https://chemiday.com/en/reaction/3-1-0-2142