Surface Chemistry questions
622 published questions with worked solutions.
- Alum helps in purifying water by:Not in JEE Main or NEET syllabus
- A colloidal solution always has at least:Not in JEE Main or NEET syllabus
- The average size of colloidal particles is of the order:Not in JEE Main or NEET syllabus
- The false statement for hydrophilic sols is:Not in JEE Main or NEET syllabus
- 11.42 g of O _2 gas is adsorbed on 2 g of metal powder. The volume of O _2 adsorbed (in litre/g of metal powder) at STP is ____.Not in JEE Main or NEET syllabus
- How many of the following represent a surface phenomenon? Adsorption, Surface tension, Surface energy, Viscosity, Absorption,...Not in JEE Main or NEET syllabus
- How many of the following is/are examples of emulsion? Paint, milk, cheese, fog, hair, cream, rubber.Not in JEE Main or NEET syllabus
- In the Freundlich adsorption isotherm, the value of ( 1 n ) is observed between 0 and _____ (upper limit).Not in JEE Main or NEET syllabus
- 5 g of solid adsorbent is dropped in a container of 1.5 L N _2 gas at 1 atm and 300 K . The pressure of N _2 is reduced to 20 %....Not in JEE Main or NEET syllabus
- In how many of the following is the dispersion medium a liquid? Smoke, mist, soap lather, milk, sponge, whipped cream.Not in JEE Main or NEET syllabus
- 100 mL of a colloidal solution is completely precipitated by the addition of 5 mL of 1 M NaCl solution. Calculate the coagulation...Not in JEE Main or NEET syllabus
- How many of the following are positively charged sols? Gold sol, eosin sol, haemoglobin, starch sol, methylene blue sol,...Not in JEE Main or NEET syllabus
- 100 mL of 1 M acetic acid is shaken with 4 g of charcoal. The concentration of acetic acid after adsorption is 0.6 M. Calculate...Not in JEE Main or NEET syllabus
- How many of the following features are CORRECT regarding physisorption? 1. Highly specific in nature. 2. Heat of adsorption is...Not in JEE Main or NEET syllabus
- 3 g of activated charcoal was added to 52 mL of oxalic acid solution (0.06 M) in a flask. After an hour, it was filtered and the...Not in JEE Main or NEET syllabus
- In a colloidal solution, the dispersed phase and dispersion medium may be solid, liquid or gas. In how many of the following is...Not in JEE Main or NEET syllabus
- How many among the following is/are associated colloids? Starch sol, gold sol, gelatin sol, soap sol.Not in JEE Main or NEET syllabus
- 1 g of activated charcoal at STP undergoes monolayer adsorption of NH _3. If 1 g of charcoal has a surface area of 2 10^2 m ^2...Not in JEE Main or NEET syllabus
- The coagulation power of electrolyte 'X' is _____ times greater than that of electrolyte 'Y'. The coagulation values of X and Y...Not in JEE Main or NEET syllabus
- The critical micelle concentration (CMC) of a cationic colloidal electrolyte is 10^ -3 M. If 1 mm ^3 contains 10^ 13 micelles,...Not in JEE Main or NEET syllabus
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