Chemistry questions
29404 published questions with worked solutions.
- Consider the above chemical reaction: 2-methylpropene (isobutylene) + Br_2/CCl_4 Product "P". The total number of stereoisomers...
- For a chemical reaction A B, it was found that concentration of B is increased by 0.2 mol L^ -1 in30 min. The average rate of the...
- Assuming that Ba(OH)_2 is completely ionised in aqueous solution under the given conditions the concentration of H_3O^+ ions in...
- When 3.00 g of a substance 'X' is dissolved in 100 g of CCl_4, it raises the boiling point by 0.60 K. The molar mass of the...
- Sodium stearate CH_3(CH_2)_ 16 COO^-Na^+ is an anionic surfactant which forms micelles in oil. Choose the correct statement for...Not in JEE Main or NEET syllabus
- The water soluble protein is :
- At 298.2 K the relationship between enthalpy of bond dissociation (in kJ mol^ -1 ) for hydrogen (E_H) and its isotope, deuterium...
- Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) : Gabriel...
- Which one of the products of the following reactions does not react with Hinsberg reagent to form sulphonamide?
- The ionic radii of K^+, Na^+, Al^ 3+ and Mg^ 2+ are in the order :
- Which one of the following compounds of Group-14 elements is not known?
- Given below are two statements : Statement I : None of the alkaline earth metal hydroxides dissolve in alkali. Statement II :...Not in JEE Main or NEET syllabus
- The correct order of following 3d metal oxides, according to their oxidation numbers is: (a) CrO_3 (b) Fe_2O_3 (c) MnO_2 (d)...
- An organic compound 'A' C_4H_8 on treatment with KMnO_4/H^+ yields compound 'B' C_3HO. Compound 'A' also yields compound 'B' on...
- The number of sigma bonds in H_3C-C(=CH)-C C-H (with branch -CH) ——
- CO_2 gas is bubbled through water during a soft drink manufacturing process at 298 K. If CO_2 exerts a partial pressure of 0.835...
- For the reaction A + B 2C the value of equilibrium constant is 100 at 298 K. If the initial concentration of all the three...
- Consider the cell at 25°C Zn | Zn^ 2+ (aq), (1 M) || Fe^ 3+ (aq), Fe^ 2+ (aq) |Pt(s) The fraction of total iron present in the...
- At 298 K, the enthalpy of fusion of a solid (X) is 2.8 kJ mol^ -1 and the enthalpy of vaporisation of the liquid (X) is 98.2 kJ...
- When 10 mL of an aqueous solution of Fe^ 2+ ions was titrated in the presence of dil H_2SO using diphenylamine indicator, 15 mL...