NEETChemistrySurface Chemistry
Match the item given in column I and column-II. ( array |l|l|l|l| & Column-I & & Column II (a) & Protective colloid & (i) & FeCl ₃+ NaOH (b) & array l Liquid-Liquid Colloid array & (ii) & array l Lyophilic colloids array (c) & array l Positively Charged colloid array & (iii) & Emulsion (d) & array l Negatively charged colloid array & (iv) & array l FeCl ₃+ Hot water array array )
Options
- A(a-ii), (b-iii), (c-iv), (d-i)
- B(a-i), (b-ii), (c-iii), (d-iv)
- C(a-iv), (b-iii), (c-ii), (d-i)
- D(a-iii), (b-iv) (c-i), (d-iii)
Correct answer
A. (a-ii), (b-iii), (c-iv), (d-i)
Step-by-step solution
1. Protective colloid: These are lyophilic colloids that stabilize lyophobic colloids. Hence, (a) matches with (ii) Lyophilic colloids. 2. Liquid-Liquid Colloid: This type of colloid is known as an emulsion, which typically involves the mixing of two immiscible liquids. Therefore, (b) matches with (iii) Emulsion. 3. Positively Charged Colloid: An example of a positively charged colloid is formed by adding a cationic salt like FeCl3 to water, which leads to the formation of a positively charged colloid. This matches