Chemistry - Surface Chemistry
Practise 13 BITSAT previous year questions on Surface Chemistry, compiled from papers spanning 2011 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.
Surface Chemistry has been asked in 10 of the 16 years of BITSAT papers analysed (2009–2024), with 13 questions in all. 54% of them were easy, 31% moderate and 15% tough. Most of its questions came from 2023, with 2 questions that year. In the last three years (2022–2024) it had 3 questions across 3 papers, about 1 per paper.
The chapter's 4 topics are not weighted equally: Properties of colloidal solution (6 questions, 46%), Adsorption isotherms (4 questions, 31%), and Adsorption (2 questions, 15%) have been asked the most. Properties of colloidal solution has also led over the last five years, with 2 questions. Adsorption isotherms has produced the most tough questions (1).
- 1The charge on colloidal particies is due to2024 (Memory Based Paper 2)Properties of colloidal solution
- 2Which of the following method is used for coagulation of the sol?2023 (Memory Based Paper 1)Properties of colloidal solution
- 3Point out the false statement :2023 (Memory Based Paper 2)Emulsions and Gels
- 4Adsorption of a gas follows Freundlich adsorption isotherm. is the mass of the gas adsorbed on mass of the adsorbent. The plot of versus is 2021Adsorption isotherms
- 5Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at . For this process, which ofthe following statement is corre2020Adsorption
- 6In Freundlich adsorption isotherm, the value of 1 / n is2019Adsorption isotherms
- 7Which of the following graph is correctly represented according to Freundlich isotherm.2018Adsorption isotherms
- 8Which of the following ionic substances will be most effective in precipitating the sulphur sol?2015Properties of colloidal solution
- 9The isoelectric-point of a colloidially dispersed material is the value at which2014Properties of colloidal solution
- 10Which of the following gas molecules have maximum value of enthalpy of physisorption?2012Adsorption
- 11Which of the following will be the most effective in the coagulation of soil?2012Properties of colloidal solution
- 12Position of non-polar and polar part in micelle is2011Properties of colloidal solution
- 13For adsorption of a gas on a solid, the plot of log vs log is linear with slope equal to ( being whole number)2011Adsorption isotherms
Frequently Asked Questions
1.How many questions are available for Surface Chemistry?
This chapter includes 13 questions compiled from BITSAT papers spanning 2011 to 2024.
2.Are these questions only from BITSAT, or from other exams too?
These are BITSAT questions specifically for the Surface Chemistry chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Surface Chemistry an important chapter for BITSAT Chemistry?
Surface Chemistry has appeared in 10 of the 16 years of BITSAT papers covered here, with 13 questions across 11 papers - about one per paper it appears in.
4.What is the difficulty level of Surface Chemistry questions in BITSAT?
Of the 13 questions analysed for this chapter, 54% are easy, 31% moderate and 15% tough. 2023 had the most, with 2 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 - 6 questions (46%)
- Adsorption isotherms - 4 questions (31%)
- Adsorption - 2 questions (15%)
- Adsorption isotherms has produced the most tough questions (1).
6.Is Surface Chemistry's weightage in BITSAT going up or down?
Across all 11 papers analysed, Surface Chemistry has averaged about 1.2 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.