Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Secondary Reference Electrodes Questions & Answers
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Multiple Choice Questions > Secondary Reference Electrodes Questions & Answers

Secondary Reference Electrodes Questions & Answers

Last updated: November 27, 2021 5:37 pm
Editorial Staff
Multiple Choice Questions
No Comments
Share
5 Min Read
SHARE

Secondary Reference Electrodes Questions & Answers

1. Which of the following cannot be used as secondary reference electrode?

a) Calomel electrode
b) Silver-silver chloride electrode
c) Mercury-mercury sulphate electrode
d) Glass electrode

Answer: d

Explanation: Glass electrode cannot be used as secondary reference electrode. It is an indicator electrode. It responds to the changes in the activity of the analyte ion.

2. Which of the following is known as calomel?

a) Silver chloride
b) Mercury chloride
c) Potassium chloride
d) Mercury sulphate

Answer: b

Explanation: Mercury chloride is known as calomel. The most important general purpose secondary electrode is calomel electrode.

3. The calomel electrodes are classified based on which of the following?

a) Materials used in the electrode
b) Amount of mercury present
c) Concentration of Kcl
d) Purity of mercury

Answer: c

Explanation: Several convenient calomel electrodes are available. They are classified based on the concentration of Kcl.

4. Which of the following calomel electrodes are used for accurate work?

a) Saturated calomel electrode
b) Electrode with 0.1M Kcl
c) Electrode with 1M Kcl
d) Electrode with 2M Kcl

Answer: b

Explanation: Calomel electrode with 0.1M Kcl is used for accurate work. Saturated calomel electrodes are easy to prepare and maintain.

5. Calomel electrode can behave as which of the following components?

a) Anode only
b) Cathode only
c) Anode or cathode
d) Salt bridge

Answer: c

Explanation: Calomel electrode can behave as anode or cathode depending upon the half cell. A salt bridge is used for coupling.

6. When the calomel electrode acts as the cathode which of the following does not occur?

a) Mercury ions are discharged at the electrode
b) More calomel passes into the solution
c) There is a decrease in the concentration of chloride ions
d) There is an increase in the concentration of chloride ions

Answer: d

Explanation: When the calomel electrode acts as the cathode. When the calomel electrode acts as the cathode, mercury ions are discharged at the electrode. More calomel passes into the solution. Hence, there is an increase in the concentration of chloride ions.

7. Which of the following is not the characteristics of calomel electrode?

a) The potential of electrode is not temperature dependent
b) Preparation of electrode is easy
c) Value of potential or emf is higher for lower concentration of Kcl
d) Value of potential decreases with increasing concentration of Kcl

Answer: a

Explanation: The potential of calomel electrode is temperature dependent. When temperature changes potential comes to a new value. It cannot be used in places where high temperatures exist.

8. Which of the following is not the characteristics of silver/silver chloride electrode?

a) These electrodes have good electrical and chemical stability
b) It can be used in temperatures greater than 600oC
c) It can be used in places or solutions that have strong reducing agents
d) It should not be used in solutions that contain proteins, sulphide or bromide

Answer: c

Explanation: The silver/silver chloride electrode cannot be used in places or solutions that have strong reducing agents. They will reduce the silver ions to silver metal.

9. While using reference electrodes, the internal liquid level should always be kept above that of the sample solution.

a) True
b) False

Answer: a

Explanation: While using reference electrodes, the internal liquid level should always be kept above that of the sample solution. This is done to prevent contamination of the electrolyte solution.

10. Which of the following salt bridge solutions must be used for silver/silver chloride electrode?

a) Saturated KCl
b) Saturated K2SO4
c) Saturated LiCl
d) Saturated KNO3

Answer: a

Explanation: Saturated KCl is used as the salt bridge solution for silver/silver chloride electrode. It can also be used for calomel electrode.

11. LiCl salt bridge is more suitable in organic solvents than KCl.

a) True
b) False

Answer: a

Explanation: LiCl salt bridge is more suitable in organic solvents than KCl. It is used for the measurement of non-aqueous solutions.

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Inductively Coupled Plasma Mass Spectrometer
Quadrupole Mass Spectrometer
Preliminary Considerations of Classical Design
Closed-Loop Frequency Response
Cascade Compensation in Time Domain
Time Response of Second Order Systems – IV
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

IR Instrumentation Questions & Answers
Biosensors Questions & Answers
Feedforward Control Questions and Answers
Electron Spin Resonance
Hydrogen and Glass Electrodes Questions & Answers
Necessary Conditions for Stability & Non-Linear Systems
Time Response of Second Order Systems – II
Construction of Root Loci

Keep Learning

Top 100 Power Plant Engineering Objective Questions & Answers

Top 100 Power Plant Engineering Objective Questions & Answers

Pollution Monitoring Instruments Questions and Answers

Sulphur Di-oxide Monitoring Questions & Answers

Root Locus Concepts Objective Questions

Root Locus Concepts Objective Questions

Digital Circuits Questions & Answers

Logic Families Questions and Answers

PID Controllers Multiple Choice Questions

PID Controller Multiple Choice Questions

Pollution Monitoring Instruments Questions and Answers

Hydrocarbons Questions & Answers

Control Valves Multiple Choice Questions

Control Valves Multiple Choice Questions

Actuators Questions and Answers

Actuators Questions and Answers

Learn More

Control Valve Flow Characteristics

Different Control Valve Flow Characteristics

Structured Text in PLC: Parking Information Systems

Structured Text in PLC: Parking Information Systems

Weight-based Level Instruments Principle

Weight-based Level Measurement Principle

Design Basis for Fire Detection and Alarm System

Design Basis for Fire Detection and Alarm System

How to Select the Right Encoder for Your Machine

How to Select the Right Encoder for Your Machine?

thermocouple types

What is a Thermocouple ?

Feedforward Control Questions & Answers

Feedforward Control Questions and Answers

Voltage Control Methods at Distribution System

Voltage Control Methods at Distribution System

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?