Chemistry questions
29404 published questions with worked solutions.
- The equation that represents the water-gas shift reaction is :Not in JEE Main or NEET syllabus
- Consider the following reaction N_2O_4(g) 2NO_2(g) ; H^0 = +58 kJ For each of the following cases (a, b), the direction in which...
- Which of the following is not an essential amino acid :
- The structure of PCl_5 in the solid state is
- A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives for A and B are...
- If a person is suffering from the deficiency of nor-adrenaline, what kind of drug can be suggested ?Not in JEE Main or NEET syllabus
- The correct electronic configuration and spinonly magnetic moment (BM) of Gd^ 3+ (Z = 64), respectively, are
- In the sixth period, the orbitals that are filled are
- an oxidation-reduction reaction in which 3 electrons are transferred has a G^0 of 17.37 kJ mol ^ -1 at 25°C. The value of E_ cell...
- The minimum number of moles of O_2 required for complete combustion of 1 mole of propane and 2 moles of butane is ______.
- The total number of coordination sites in ethylene diamine tetraacetate ( EDTA^ 4- ) is _____.
- The number of chiral carbon(s) present in peptide, Ile-Arg-Pro, is _____.
- A soft drink was bottled with a partial pressure of CO_2 of 3 bar over the liquid at room temperature. The partial pressure of...
- The correct statement about probability density (except at infinite distance from nucleus) is :
- The compound that has the largest H–M–H bond angle (M=N, O, S, C), is -
- Which one of the following polymers is not obtained by condensation polymerisation?Not in JEE Main or NEET syllabus
- Boron and silicon of very high purity can be obtained through :Not in JEE Main or NEET syllabus
- Lattice enthalpy and enthalpy of solution of NaCl are 788 kJ mol ^ -1 and 4 kJ mol ^ -1 , respectively. The hydration enthalpy of...
- Reaction of ammonia with excess Cl_2 gives -
- The correct order of the ionic radii of O^ 2- , N^ 3- , F^- , Mg^ 2+ , Na^+ and Al^ 3+ is :