Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 7: Problem 38

The standard electrode potentials of four metals \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are given below. Based on these values, arrange them in the descending order of ease of deposition of metals from their salt solutions when subjected to electrolysis under standard conditions. (1) \(\rightarrow-0.9 \mathrm{~V}\) (2) \(\rightarrow-2.71 \mathrm{~V}\) (3) \(\rightarrow 0.77 \mathrm{~V}\) (4) \(\rightarrow 0.8 \mathrm{~V}\) (a) 4321 (b) 2134 (c) 3412 (d) 4312

Short Answer

Expert verified
Question: Arrange the following metals in decreasing order of ease of deposition from their salt solutions when subjected to electrolysis under standard conditions: Metal A (-0.9 V), Metal B (-2.71 V), Metal C (0.77 V), Metal D (0.8 V). Answer: (b) 2134

Step by step solution

01

Listing the electrode potentials of the metals

List the given standard electrode potentials: Metal A: -0.9 V Metal B: -2.71 V Metal C: 0.77 V Metal D: 0.8 V
02

Arranging the electrode potentials in decreasing order

From the given standard electrode potentials values, we need to arrange the metals in the order of decreasing electrode potentials. The larger the negative value, the easier it is to deposit the metal from its salt solution: Metal B: -2.71 V Metal A: -0.9 V Metal C: 0.77 V Metal D: 0.8 V
03

Determine the answer using the arrangement from Step 2

Based on the arrangement of metals in Step 2, the answer corresponds to the order of metals in descending order of ease of deposition from their salt solutions: Metal B (2), Metal A (1), Metal C (3), and Metal D (4). Therefore, the correct answer is (b) 2134.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Which of the following electrolytes exhibits maximum conductivity? (a) \(1 \mathrm{M} \mathrm{NaCl}\) (b) \(1 \mathrm{M} \mathrm{KCl}\) (c) \(1 \mathrm{M} \mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}\) (d) \(1 \mathrm{M} \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)

The amount of sodium produced by passage of 2 moles of electrons in the electrolysis of fused \(\mathrm{NaCl}\) is (a) \(23 \mathrm{~g}\) (b) \(46 \mathrm{~g}\) (c) \(11.5 \mathrm{~g}\) (d) \(58.5 \mathrm{~g}\)

State whether the following statements are true or false. The deposition of different ions at electrodes stops when the supply of electricity is stopped.

State whether the following statements are true or false. In the electrochemical series, ions are arranged in an increasing order of discharge potentials.

The products of electrolysis of dilute aqueous solution of sodium hydride are (a) \(\mathrm{Na}\) at cathode and \(\mathrm{H}_{2}\) at anode (b) \(\mathrm{H}_{2}\) at cathode and \(\mathrm{O}_{2}\) at cathode (c) \(\mathrm{Na}\) at cathode and \(\mathrm{O}_{2}\) at anode (d) \(\mathrm{H}_{2}\) at both cathode and anode
See all solutions

Recommended explanations on Chemistry Textbooks

Physical Chemistry

Read Explanation

Chemical Analysis

Read Explanation

Chemical Reactions

Read Explanation

Inorganic Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Chemistry Branches

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free