x

Subject - Chemistry:

Basics

MCQ - 130-2316

Question:

When a piece of Cu-wire is immersed in solution of AgNO3, the color of solution becomes blue. It is due to

  1. Oxidation of Cu
  2. Reduction of Cu
  3. Oxidation of Ag
  4. Reduction of Cu

Correct Answer: A

Explanation:

Cu + 2Ag+→Cu2+ + 2Ag Colourless Blue Cu- wire will reduce the Ag+ to Ag and Cu is oxidized into Cu2+ which has blue coloration in aqueous solution.

Record Performance

645 MCQ for effective preparation of the test of Basics of Chemistry section.

Read the MCQ statement: When a piece of Cu-wire is immersed in solution of AgNO3, the color of solution becomes blue. It is due to , keenly and apply the method you have learn through the video lessons for Basics to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 130-2316.

How to Answer

Solve the question for MCQ No. and decide which option (A through D/E) is the best choice to answer the MCQ, then click/tap the blue button to view the correct answer and it explanation.

Share This Page