Q46.What will happen when a block of copper metal is dropped into a beaker containing a solution of 1 M ZnSO4 ? (1) The copper metal will dissolve with evolution of (2) The copper metal will dissolve with evolution of oxygen gas. hydrogen gas. (3) No reaction will occur. (4) The copper metal will dissolve and zinc metal will be deposited.
What This Question Tests
This question assesses the understanding of the reactivity of metals and their ability to displace other metals from their salt solutions, based on their standard electrode potentials.
Concepts Tested
📚 NCERT Sections This Tests
2.1 — Arrange The Following Metals In The Order In Which They Displace Each Other
Chemistry Class 11 · Chapter 2
2.1 Arrange the following metals in the order in which they displace each other from the solution of their salts. Al, Cu, Fe, Mg and Zn.
2.2 — Given The Standard Electrode Potentials,
Chemistry Class 11 · Chapter 2
2.2 Given the standard electrode potentials, K+/K = –2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = –2.37 V, Cr3+/Cr = – 0.74V Arrange these metals in their increasing order of reducing power.
2.6 — In The Button Cells Widely Used In Watches And Other Devices The Following
Chemistry Class 11 · Chapter 2
2.6 In the button cells widely used in watches and other devices the following reaction takes place: Zn(s) + Ag2O(s) + H2O(l) ® Zn2+(aq) + 2Ag(s) + 2OH–(aq) Determine DrGo and Eo for the reaction.
📋 Question Details
- Chapter
- Electrochemistry
- Topic
- Redox reactions
- Year
- 2016
- Shift
- 09 Apr Online
- Q Number
- Q46
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 3: Electrochemistry
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