हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Colloidal solutions show colligative properties. Reason: Colloidal particles are large in size.

Advertisements
Advertisements

प्रश्न

Assertion: Colloidal solutions show colligative properties.

Reason: Colloidal particles are large in size.

विकल्प

  • Assertion and reason both are correct and the reason is correct explanation of assertion.

  • Assertion and reason both are correct but reason does not explain assertion.

  • Assertion is correct but reason is incorrect.

  • Both assertion and reason are incorrect.

  • Assertion is incorrect but reason is correct.

MCQ
Advertisements

उत्तर

Assertion and reason both are correct but reason does not explain assertion.

Explanation:

Colloidal particles are large in size and hence the number of particle is lesser than the true solution. The lesser number of particles causes lower colligative properties.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Surface Chemistry - Exercises [पृष्ठ ७३]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 5 Surface Chemistry
Exercises | Q 74 | पृष्ठ ७३

संबंधित प्रश्न

Define the following terms: Associated colloids


Explain what is observed when an electrolyte NaCl is added to hydrated ferric oxide sol.


Explain the term Electrophoresis


What happens when a freshly prepared precipitate of Fe(OH)3 is shaken with a small amount of FeCl3 solution?


A colloidal sol is prepared by the given method in the figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the sol represented?


The values of colligative properties of colloidal solution are of small order in comparison to those shown by true solutions of same concentration because of colloidal particles ______.


Which of the following statements are correct?

(i) Mixing two oppositely charged sols neutralises their charges and stabilises the colloid.

(ii) Presence of equal and similar charges on colloidal particles provides stability to the colloids.

(iii) Any amount of dispersed liquid can be added to emulsion without destabilising it.

(iv) Brownian movement stabilises sols.


How does it become possible to cause artificial rain by spraying silver iodide on the clouds?


Assertion: An ordinary filter paper impregnated with collodion solution stops the flow of colloidal particles.

Reason: Pore size of the filter paper becomes more than the size of colloidal particle.


Give reason for the following:

Lyophilic colloidal solutions are more stable than lyophobic colloidal solutions.


What is Gold number?


Gold number is associated with:-


The important factor in the stabilization of a colloidal solution is ______


State the Hardy-Schulze rule.


Why a negatively charged sol is obtained when AgNO3 solution is added to KI solution?


Which of the following is a correct statement?


6.84 g Al2(SO4)3 is needed to coagulate 2.5 L of As2S3 sol completely in 2.0 hrs. The coagulation value of Al2 (SO4)3 is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×