Chemistry questions
29404 published questions with worked solutions.
- Statement I : One mole of propyne reacts with excess of sodium to liberate half a mole of H2 gas. Statement II : Four g of...
- A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of CO2 is converted into CO on addition of graphite. If total...
- The IUPAC name of the following compound is : CH3–CH(COOH)–CH2–CH2–CH(COOCH3)–CH3
- Which of the following electrolyte can be used to obtain H2S2O8 by the process of electrolysis?
- Arrange the following solutions in order of their increasing boiling points. (i) 10⁻⁴ M NaCl (ii) 10⁻⁴ M Urea (iii) 10⁻³ M NaCl...
- From the magnetic behaviour of [NiCl4]2– (paramagnetic) and [Ni(CO)4] (diamagnetic), choose the correct geometry and oxidation...
- The incorrect statements regarding geometrical isomerism are : (A) Propene shows geometrical isomerism. (B) Trans isomer has...
- The number of molecules/ions that show linear geometry among the following is _______ . SO2, BeCl2, CO2, N_3^-, NO2, F2O, XeF2,...
- A → B The molecule A changes into its isomeric form B by following a first order kinetics at a temperature of 1000 K. If the...
- Arrange the following compounds in increasing order of their dipole moment : HBr, H_2S, NF_3 and CHCl_3
- The maximum covalency of a non-metallic group 15 element 'E' with weakest E–E bond is :
- The species which does not undergo disproportionation reaction is :
- Match List-I with List-II. List-I (Partial Derivatives): (A) ( G T )_P (B) ( H T )_P (C) ( G P )_T (D) ( U T )_V List-II...
- The correct order of the following complexes in terms of their crystal field stabilization energies is
- Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is :
- The molar solubility(s) of zirconium phosphate with molecular formula (Zr^ 4+ )_3(PO_4^ 3- )_4 is given by relation
- Given below are two statements : Statement (I) : An element in the extreme left of the periodic table forms acidic oxides....
- Given below are two statements : Statement (I) : A spectral line will be observed for a 2p_x 2p_y transition. Statement (II) :...
- Given below are two statement : Statement (I) : Nitrogen, sulphur, halogen and phosphorus present in an organic compound are...
- Identify the homoleptic complex(es) that is/are low spin. (A) [Fe(CN)_5NO]^ 2- (B) [CoF_6]^ 3- (C) [Fe(CN)_6]^ 4- (D)...