Chemistry - Surface Chemistry
Practise 28 NEET previous year questions on Surface Chemistry, compiled from papers spanning 2002 to 2023. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEET tests.
Surface Chemistry has been asked in 17 of the 39 years of NEET papers analysed (1988–2026), with 28 questions in all. 75% of them were easy, 21% moderate and 4% tough. Most of its questions came from 2012, with 4 questions that year. In the last three years (2024–2026) it had 0 questions across 13 papers, about 0 per paper.
The chapter's 6 topics are not weighted equally: Properties of colloidal solution (13 questions, 46%), Adsorption isotherms (5 questions, 18%), and Adsorption (4 questions, 14%) have been asked the most. Properties of colloidal solution has also led over the last five years, with 2 questions. Properties of colloidal solution has produced the most tough questions (1).
- 1Which one is an example of heterogenous catalysis?2023 (All India)Catalysis and Theories of Catalysis
- 2Pumice stone is an example of2023 (All India)Emulsions and Gels
- 3Which of the following is a positively charged sol?2023 (Manipur)Properties of colloidal solution
- 4Given below are two statements : Statement I : In the coagulation of a negative sol, the flocculating power of the three given ions is in th2022 (Phase 1)Properties of colloidal solution
- 5Shown below are adsorption isotherms for a gas ' ' at temperatures and : and represent pressure and extent of adsorption, respectively. The 2022 (Phase 2)Adsorption
- 6The right option for the statement Tyndall effect is exhibited by , is:2021Properties of colloidal solution
- 7Measuring Zeta potential is useful in determining which property of colloidal solution?2020 (Phase 1)Properties of colloidal solution
- 8In which of the sols, the colloidal particles are with negative charge?2020 (Phase 2)Properties of colloidal solution
- 9Which mixture of the solutions will lead to the formation of negatively charged colloidal A g I I - sol?2019 (All India)Properties of colloidal solution
- 10The correct option representing a Freundlich adsorption isotherm is2019 (Odisha)Adsorption isotherms
- 11On which of the following properties, does the coagulating power of an ion depend?2018Properties of colloidal solution
- 12Which one of the following characteristics is associated with adsorption?2016 (Phase 1)Adsorption
- 13Fog is a colloidal solution of:2016 (Phase 1)Colloids
- 14The coagulation values in millimoles per litre of the electrolytes used for the coagulation of A s 2 S 3 are given below, I . N a C l = 52 I2016 (Phase 2)Properties of colloidal solution
- 15Which property of colloidal solution is independent of charge on the colloidal particles?2015 (Phase 1)Properties of colloidal solution
- 16Which property of colloids is not dependent on the charge on colloidal particles?2014Properties of colloidal solution
- 17Which of the following statements is correct for the spontaneous adsorption of a gas?2014Adsorption
- 18In Freundlich adsorption isotherm, the value of is2012 (Screening)Adsorption isotherms
- 19Which one of the following statements is incorrect about enzyme catalysis?2012 (Screening)Catalysis and Theories of Catalysis
- 20The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order2012 (Screening)Adsorption
- 21The protecting power of lyophilic colloidal sol is expressed in terms of2012 (Screening)Properties of colloidal solution
- 22If is amount of adsorbate and is amount of adsorbent, which of the following relations is not related to adsorption process?2011 (Screening)Adsorption isotherms
- 23The Langmuir adsorption isotherm is deduced using the assumption:2007Adsorption isotherms
- 24A plot of versus for the adsorption of a gas on a solid gives a straight line with slope equal to:2006Adsorption isotherms
- 25Which of the following forms micelles in aqueous solution above certain concentration?2005Properties of colloidal solution
- 26Which of the following forms cationic micelles above certain concentration?2004Properties of colloidal solution
- 27According to the adsorption theory of catalysis, the speed of the reaction increases because2003Catalysis and Theories of Catalysis
- 28Position of non-polar and polar parts in micelle is:2002Colloids
Frequently Asked Questions
1.How many questions are available for Surface Chemistry?
This chapter includes 28 questions compiled from NEET papers spanning 2002 to 2023.
2.Are these questions only from NEET, or from other exams too?
These are NEET questions specifically for the Surface Chemistry chapter. Questions from other exams like AIIMS or JIPMER are organised separately under their respective exam sections.
3.Is Surface Chemistry an important chapter for NEET Chemistry?
Surface Chemistry has appeared in 17 of the 25 years of NEET papers covered here, with 28 questions across 22 papers - about one per paper it appears in.
4.What is the difficulty level of Surface Chemistry questions in NEET?
Of the 28 questions analysed for this chapter, 75% are easy, 21% moderate and 4% tough. 2012 had the most, with 4 questions.
5.Which topics in Surface Chemistry should I focus on?
These topics have carried the most weightage in Surface Chemistry:
- Properties of colloidal solution - 13 questions (46%)
- Adsorption isotherms - 5 questions (18%)
- Adsorption - 4 questions (14%)
- Properties of colloidal solution has produced the most tough questions (1).
6.Is Surface Chemistry's weightage in NEET going up or down?
Across all 22 papers analysed, Surface Chemistry has averaged about 1.3 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.