English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?

Advertisements
Advertisements

Question

Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?

Options

  • Emulsification

  • Colloid formation

  • Coagulation

  • Peptisation

MCQ
Advertisements

Solution

Coagulation

Explanation:

A delta is formed at a place where rivers meet the sea due to the process of setting down of colloidal particles. The ions which are present in sea water are responsible for coagulation.

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Surface Chemistry - Exercises [Page 67]

APPEARS IN

NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 5 Surface Chemistry
Exercises | Q I. 22. | Page 67

RELATED QUESTIONS

Define the following with a suitable example, of each: 
Multimolecular colloid


Identify the dispersed phase and dispersion medium in the following colloidal dispersions.

  1. milk
  2. blood
  3. printing ink
  4. fog

Explain the term emulsion and types of emulsions.


Explain micelle formation in a soap solution.


Which type of colloid is formed on the dissolution of soap in water?


Identify the CORRECT statement.


Identify the CORRECT statements from the following.

i. The colour of colloidal dispersion depends on size of colloidal particles.

ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.

iii. Eosin and congo red are examples of negatively charged sols.


In coagulation of positively charged ferric hydroxide sol, the most and least effective ions are ____________ and ____________ respectively.


Which of the following is an example of liquid-liquid system?


The order of coagulating power of following ions in the coagulation of a positive sol is:

i. \[\ce{PO^{3-}_4}\]

ii. \[\ce{SO^{2-}_4}\]

iii. \[\ce{[Fe(CN)6]^{4-}}\]

iv. \[\ce{NO^-_3}\]


Mixing of two oppositely charged sols leads to ____________.


Froth is a colloidal solution of ____________.


Pumice stone is an example of ______.


An emulsion cannot be broken by:

(i) heating

(ii) adding more amount of dispersion medium

(iii) freezing

(iv) adding emulsifying agent


What is collodion?


Toluene is oxidised to benzoic acid by


Which of the following is most powerful to coagulate the negative colloid?


Smoke is an example of ______.


Starch is an example of which of the following type of colloid?


Identify positively charged sol from following.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×