Home
Class 12
CHEMISTRY
A sol of Agl can be positively or negati...

A sol of `Agl` can be positively or negatively charged. Explain how and why?

Text Solution

Verified by Experts

Charge on the colloidal particles is due to the preferential adsorption of `Kl` adsorbs negative `I^(ɵ)` ions and hence is negatively charged. However, on shaking `AgI` with excess of `AgNO_(3)` solution, it will adsorb `Ag^(o+)` ions and hence becomes positively charged.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Illustration 5.36|1 Videos

  • SURFACE CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Solved Examples|20 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 2.3 (Objective)|9 Videos

  • SYNTHETIC AND NATURAL POLYMERS

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises Assertion Reasoning|10 Videos

Similar Questions

Explore conceptually related problems

Positive and negative charge in 18 cc of water is

Metal sol is negatively charged. True/False

Is haemoglobin negatively or positively charged sol?

Ferric chloride forms both positively and negatively charged sols. Explain.

Give the formula of one species positively charged and one negatively charged that will be isoelectronic with He.

Positive sol is :

which of the following sol is negatively charged ?

Which of the following sols is negatively charged?

If an object made of substance A is rubbed with an object made of substance B, then A becomes positively charged and B becomes negatively charged. If however, an object made of substance C, then A becomes negatively charged, What will happen if an object made of substance B is rubbed against an object made of substance C? (a) B becomes positively charged and C becomes positively (b) B becomes positively charged and C becomes negatively charged. (c ) B becones negatively charged and C becomes positively charged. (d) B becomes negatively charged and C becomes negatively charged.

(i) Differentitate between adsorbtion and absorption. (ii) Out of MgCl_(2) and AlCl_(3) , which one is more effective in causing coagulation of negatively charged sol and why? (iii) Out of sulphur sol and proteins, which one forms multimolecular colloids?