Chemistry questions
29404 published questions with worked solutions.
- The metal that forms nitride by reacting directly with N_2 of air, is:Not in JEE Main or NEET syllabus
- In general, the properties that decrease and increase down a group in the periodic table, respectively, are:
- The major product of following reaction is: R - C N [(2) H_2O] (1) AlH(i - Bu)_2 ?
- The ore that contains both iron and copper is:Not in JEE Main or NEET syllabus
- The anodic half cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO_4 electrolyzed in g...
- The following results were obtained during kinetic studies of the reaction: 2A + B → Products | Experiment | [A] (in mol L^ -1 )...
- For emission line of atomic hydrogen from n_i = 8 to n_f = n, the plot of wave number ( ) against ( 1 n^2 ) will be (The Rydberg...
- The correct decreasing order for acid strength is:
- 20 mL of 0.1 M H_2SO_4 solution is added to 30 mL of 0.2 M NH_4OH solution. The pH of the resultant mixture is: [pK_b of NH_4OH =...
- The increasing order of pKa of the following amino acids in aqueous solution is: Gly Asp Lys Arg
- According to molecular orbital theory, which of the following is true with respect to Li_2^+ and Li_2^-?
- Two complexes [Cr(H_2O)_6]Cl_3 (A) and [Cr(NH_3)_6]Cl_3 (B) are violet and yellow coloured, respectively. The incorrect statement...
- Which one of the following statements regarding Henry's law is not correct?
- The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is:
- A solution of sodium sulfate contains 92 g of Na^+ ions per kilogram of water. The molality of Na^+ ions in that solution in mol...
- The isotopes of hydrogen are:Not in JEE Main or NEET syllabus
- Aluminium is usually found in +3 oxidation state. In contrast, thallium exists in +1 and +3 oxidation states. This is due to:
- The correct set of species responsible for the photochemical smog is:Not in JEE Main or NEET syllabus
- The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molality (in mol kg^ -1 ) of the aqueous solution is:
- Glucose and Galactose are having identical configuration in all the positions except position: