Surface Chemistry

JEE Main Chemistry · 24 questions · not in the 2024+ syllabus

All questions, latest first

• 20 mL of 0.5 M NaCl is required to coagulate 200 mL of As_2 S_3 solution in 2 hours. The coagulating value of NaCl is ____.202315 April, Shift 1 · Q86
• Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The diameter…202313 April, Shift 2 · Q63
• What happens when a lyophilic sol is added to a lyophobic sol?202313 April, Shift 1 · Q63
• Four gases A, B, C and D have critical temperatures 5.3,33.2,126.0 and 154.3 K respectively. For their adsorption on a fixed…202312 April, Shift 1 · Q64
• The number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ____ A. The…202311 April, Shift 2 · Q87
• 25 mL of silver nitrate solution ( 1 M ) is added dropwise to 25 mL of potassium iodide (1.05 M) solution. The ion(s) present in…202311 April, Shift 1 · Q63
• Ferric chloride is applied to stop bleeding because -202310 April, Shift 2 · Q63
• The enthalpy change for the adsorption process and micelle formation respectively are202310 April, Shift 1 · Q63
• Coagulating value of the electrolytes AlCl_3 and NaCl for As_2 S_3 are 0.09 and 50.04 respectively. The coagulating power of…20238 April, Shift 2 · Q87
• Which of the following represent the Freundlich adsorption isotherms? Choose the correct answer from the options given below:20238 April, Shift 1 · Q63
• The number of colloidal systems from the following, which will have 'liquid' as the dispersion medium, is ____ Gem stones,…20236 April, Shift 2 · Q87
• Match List I with List II Choose the correct answer from the options given below:20236 April, Shift 1 · Q63
• In figure, a straight line is given for Freundrich Adsorption (y=3 x+2.505). The value of 1/n and log K are respectively.20231 February, Shift 2 · Q34
• Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A: Amongst He, Ne,…20231 February, Shift 1 · Q33
• Match List I with List II Choose the correct answer from the options given below:202331 January, Shift 2 · Q33
• Adding surfactants in non polar solvent, the micelles structure will look like202331 January, Shift 1 · Q33
• The graph of log x/m vs log p for an adsorption process is a straight line inclined at an angle of 45^° with intercept equal to…202330 January, Shift 2 · Q57
• Given below are two statements: one is labelled as Assertion and the other is labelled as Reason (R). Assertion: In expensive…202330 January, Shift 1 · Q32
• Match List I and List II Choose the correct answer from the options given below:202329 January, Shift 2 · Q34
• Which of the following salt solutions would coagulate the colloid solution formed when FeCl_3 is added to NaOH solution, at the…202329 January, Shift 1 · Q33
• The number of incorrect statement/s from the following is/are ____ A. Water vapours are adsorbed by anhydrous calcium chloride.…202325 January, Shift 2 · Q57
• The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph202325 January, Shift 1 · Q33
• The number of statement/s which are the characteristics of physisorption is ____ A. It is highly specific in nature B. Enthalpy…202324 January, Shift 2 · Q57
• Statement I: For colloidal particles, the values of colligative properties are of small order as compared to values shown by true…202324 January, Shift 1 · Q33