Surface Chemistry NEET PYQs (1996–2026)

Solved Surface Chemistry PYQs

3 recent questions with answers. The full set of 33 is free to practise.

1. NEET 2026HardCatalysis
   Q1

   Match List I with List II:
   
   List I (Transition metal/compound/complex):
   
   A. V₂O₅,
   
   B. Fe,
   
   C. PdCl₂,
   
   D. Ni complex
   
   List II (Catalytic Role):
   
   I. Preparation of ammonia from N₂/H₂ mixture,
   
   II. Polymerisation of alkynes,
   
   III. Preparation of H₂SO₄ and SO₂,
   
   IV. Oxidation of ethyne to ethanol
   
   Choose the correct answer from the options given below:

   • AA-III, B-IV, C-I, D-II
   • BA-IV, B-I, C-III, D-II
   • CA-II, B-I, C-IV, D-III
   • DA-III, B-I, C-IV, D-II

   Show answer & solution

   Correct answer: (D)

   V₂O₅ -- oxidation of SO₂ to SO₃ (III); Fe -- Haber process (I); PdCl₂ --
   
   oxidation of ethyne to ethanol (IV); Ni complex -- polymerisation of
   
   alkynes (II). So A-III, B-I, C-IV, D-II.
2. NEET 2023EasyTypes of Colloids
   Q2

   Pumice stone is an example of

   • AGel
   • BSolid sol
   • CFoam
   • DSol

   Show answer & solution

   Correct answer: (B)

   Pumice stone is a solid sol. Dispersed phase: Gas Dispersed medium : Solid
3. NEET 2023EasyColloidal Properties
   Q3

   Which of the following is a positively charged sol ?

   • AMethylene blue sol
   • BCongo red sol
   • CSilver sol
   • D${Sb}_2{S}_3$ sol

   Show answer & solution

   Correct answer: (A)

   Methylene blue solution

Topic-wise question count

Where NEET has asked from Surface Chemistry, most frequent first.

• Adsorption8
• Colloidal Properties7
• Catalysis6
• Coagulation6
• Types of Colloids3
• Micelles3

Year-wise Surface Chemistry questions in NEET

Number of questions from this chapter in each year's paper(s).