Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 6: Problem 12

Gold number is measure of (a) amount of gold present in colloidal solution (b) amount of gold required to break the colloid (c) amount of gold required to protect the colloidal (d) none

Short Answer

Expert verified
The correct answer is (c) amount of gold required to protect the colloidal.

Step by step solution

01

Identify the Meaning of the Term 'Gold Number'

The 'gold number' is a property specific to colloidal solutions. It's a measure of the protective power of a lyophilic colloid against the coagulating action of electrolytes. Simply put, it quantifies the colloidal stability granted by certain substances, i.e., how much of a certain substance is required to prevent the precipitation of a colloidal solution upon the addition of a specific amount of an electrolyte.
02

Match the Definition to the Options

With the definition at hand, we must look at the available options and determine which matches best. Analyze each option separately and compare it with the definition of the gold number.
03

Choose the Correct Option

By definition, the 'gold number' is neither the amount of gold present in the colloidal solution (option a), nor is it the amount of gold required to break the colloid (option b). It is, in fact, the amount of a protective substance that is required to prevent the precipitation of a colloidal solution (option c). Thus, option (c) is the correct answer.

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 method is used to destroy a sol? (a) Condensation (b) Dialysis (c) Diffusion (d) Addition of electrolyte

The minimum concentration of an electrolyte required to cause coagulation of a sol is called: (a) flocculation (b) gold number (c) Coagulation number (d) none

AgI is used for producing artificial rain because \(\mathrm{AgI}\) (a) has cry stal structure similar to ice (b) is easy to spray at high altitudes (c) is easy to synthesise (d) is soluble in water

Which of the following is least effective in causing flocculating of ferric hydroxide sol? (a) \(\mathrm{K}_{3} \mathrm{Fe}(\mathrm{CN})_{6}\) (b) \(\mathrm{K}_{2} \mathrm{CrO}_{4}\) (c) \(\mathrm{KBr}\) (d) \(\mathrm{K}_{2} \mathrm{SO}_{4}\)

The sky looks blue due to (a) dispersion effect (b) reflection (c) transmission (d) scattering
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Analysis

Read Explanation

The Earths Atmosphere

Read Explanation

Chemistry Branches

Read Explanation

Nuclear Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Physical Chemistry

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