Four colourless salt solutions are placed in separate test tubes and a strip of copper is dipped in each. Which solution finally turns blue ?

Question

Four colourless salt solutions are placed in separate test tubes and a strip of copper is dipped in each. Which solution finally turns blue ?

Four colourless salt solutions are placed in separate test tubes and a strip of copper is dipped in each. Which solution finally turns blue ?
A. `Pb(NO_(3))_(2)`
B. `Zn(NO_(3))_(2)`
C. `AgNO_(3)`
D. `Cd(NO_(3))_(2)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
Ag is above Cu in electrochemical series . Metal placed below replaces other placed above in series .

5 views Answered 2023-02-05 15:29