Home
Class 12
CHEMISTRY
Some statements are given below about ly...

Some statements are given below about lyophillic sol
I) These are solvent hating colloidal solutions
II) These are very stable.
III) All high molecular weight carbon compounds form in water, lyophillic sols.
The correct combination is 

A

Both I and Il are correct

B

Both II and III are correct

C

Both I and III are correct

D

All are correct

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements about lyophilic sols, let's analyze each statement step by step. ### Step 1: Analyze Statement I **Statement I:** "These are solvent-hating colloidal solutions." - **Explanation:** The term "lyophilic" means "solvent-loving." Therefore, this statement is incorrect. Lyophilic sols are attracted to the solvent and form stable colloidal solutions. ### Step 2: Analyze Statement II **Statement II:** "These are very stable." - **Explanation:** Lyophilic sols are indeed very stable due to the strong interactions between the colloidal particles and the solvent. This statement is correct. ### Step 3: Analyze Statement III **Statement III:** "All high molecular weight carbon compounds form in water, lyophilic sols." - **Explanation:** While many high molecular weight compounds, such as starch and proteins, can form lyophilic sols in water, it is not accurate to say that all high molecular weight carbon compounds do. Therefore, this statement is partially correct but not universally true. ### Conclusion Based on the analysis: - Statement I is **incorrect**. - Statement II is **correct**. - Statement III is **partially correct** but not universally applicable. The correct combination of statements is that only Statement II is fully correct. Therefore, the answer to the question is that both 2 and 3 are correct, but since 3 is not universally applicable, the best answer is that only Statement II is correct. ### Final Answer The correct combination is: **Only Statement II is correct.**
Promotional Banner

Similar Questions

Explore conceptually related problems

Some statements are given below each with one or two blanks. Select the option that correctly fills up the blanks. (i) High concentration of DDT disturbs ____ in birds, which causes ____. (ii) ____ burns more efficiently as compared to petrol and diesel. (iii) ___ is the natural ageing of a lake which occurs due to accumulation of ____. (iv) ______ reduces the number of organisms which are sensitive to high temperature. (v) Irreparable computers and other electronic goods are known as ____.

Which of the following statement is/are correct regarding stability of sol ? Lyophilic sols are stabilised due to a layer of solvent around sol particles. (ii) Lyophobic sols are stabilised due to presence of charge. (iii) Addition of lyophilic brings in more stability to lyophobic (iv) Addition of lyophobic brings in more stability to lyophobic.

Describe some features of catalysis by zeolites. (i) Medicines are more effective in their colloidal form. (ii) Lyophilic colloids are more stable than lyophobic colloids.

Give reason for the following observations : (i) When Silver nitrate solution is added to Potassium iodide soltuion , a negatively charge colloidal solution is formed. (ii) Finely divided substance is more effective as an adsorbent. (iii) Lyophilic colloid are also called reversible sols.

Some statements about heavy water are given below : (i) Heavy water is used as a moderator in nuclear reactors (ii) Heavy water is more associated than ordinary water. (iii) Heavy water is more effective solvent than ordinary water Which of the above statments are correct ?

Given below are three statements regarding Aschelminthes. (i) They are bilaterally symmetrical and triploblastic. (ii) They are dioecious. (iii) All are plant or animal parasites. Select the option that has both the correct statemets.

Among the statement given below, which statements /s is / are correct regarding the relationship between enzyme and substrate ? I. Above a certain concentration of substrate , an enzyme reaches its maximum rate of reaction II. Increasing the substrate concentration to a higher level doesn't reverse the effects of a competitive inhibitor. III At high substrate concentration , a non competitive inhibitor no longer affects the enzyme activity . IV. The higher the concentration of substrate the faster an enzyme can cataylse a reaction.

Given below are the following statements regarding actin (i) Is the main constituent of light band (ii) Forms the Anisotropic band on its own (iii) Are te thicker filaments Are a part of the H zone. Choose the correct option

Which of the following statements are correct about heartwood? (i). It does not help in water conduction (ii). It is also called alburnum (iii). It is light in colour and is very soft (iv). It has tracheray elements which are filled with tannins, resins etc.