Chemistry questions
29404 published questions with worked solutions.
- Enzyme activity is highest in the temperature range of
- Which of the following catalyst is used during the hydrogenation of oil?
- Catalyst increases the rate
- The ability of the catalyst is to direct the reaction to yield particular product is calledNot in JEE Main or NEET syllabus
- The zeolites have shapes selectivity depending onNot in JEE Main or NEET syllabus
- The diameter of colloidal particle is of the orderNot in JEE Main or NEET syllabus
- Which type of solutions is not filterable through filter paper and parchment membrane both?Not in JEE Main or NEET syllabus
- Which of the following sols is hydrophobic?Not in JEE Main or NEET syllabus
- Tyndall effect is not observed inNot in JEE Main or NEET syllabus
- An emulsion can be diluted with H_2O (dispersion medium) , then it isNot in JEE Main or NEET syllabus
- Which of the following (s) is/are W/O type emulsion?Not in JEE Main or NEET syllabus
- Some of the important characteristics of emulsion are as : (i) Particle size is the ranges from 1000 Å to 10,000 Å. (ii) It shows...Not in JEE Main or NEET syllabus
- Stability of an emulsion is determined byNot in JEE Main or NEET syllabus
- Extent of adsorption isNot in JEE Main or NEET syllabus
- During adsorption, which of the following has negative value?Not in JEE Main or NEET syllabus
- Gas mask is prepared on the basis of adsorption becauseNot in JEE Main or NEET syllabus
- Adsorption of gaseous molecules of hydrogen on Pd is known asNot in JEE Main or NEET syllabus
- Physisorption is exothermic in nature becauseNot in JEE Main or NEET syllabus
- Powdered substances are more effective adsorbents than their crystalline form becauseNot in JEE Main or NEET syllabus
- Identify the gas which is readily adsorbed by activated charcoal.Not in JEE Main or NEET syllabus