Chemistry questions
29404 published questions with worked solutions.
- The best reagent to convert pent -3- en-2-ol into pent -3-en-2-one is
- Which types of isomerism is shown by 2,3-dichlorobutane?
- If is the degree of dissociation of Na_2SO_4, the vant Hoff's factor (i) used for calculating the molecular mass is
- Equimolar solutions in the same solvent have
- For a spontaneous reaction the G, equilibrium constant (K) and E^ _ cell will be respectively
- The highest electrical conductivity of the following aqueous solutions is of
- Aluminium oxide may be electrolysed at 1000^ to furnish aluminium metal (Atomic mass = 27 amu; 1 Faraday = 96, 500 Coulombs). The...
- Electrolyte: KCl, KNO_3, HCl, NaOAc, NaCl with ^ (S cm^2mol^ -1 ): 149.9, 145.0, 426.2, 91.0, 126.5. Calculate ^ _ HOAc Using...
- A reaction involving two different reactants can never be
- t_ 1/4 can be taken as the time taken for the concentration of a reactant to drop to 34 of its initial value. If the rate...
- The volume of a colloidal particle, V_C as compared to the volume of a solute particle in a true solution V_s, could beNot in JEE Main or NEET syllabus
- The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectively, which...Not in JEE Main or NEET syllabus
- During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud' These areNot in JEE Main or NEET syllabus
- The number of hydrogen atom(s) attached to phosphorus atom in hypophosphorous acid is
- The correct order of the thermal stability of hydrogen halides (H – X) is
- The lanthanide contraction is responsible for the fact that
- Which of the following factors may be regarded as the main cause of lanthanide contraction?
- The oxidation state of Cr in [Cr(NH_3)_4Cl_2]^+ is
- The IUPAC name of the coordination compound K_3[Fe(CN)_6] is
- Which of the following compounds shows optical isomerism?