Chemistry Question Bank

The optically active coordination complex ion among the following is

Which of the following does not show optical isomerism? (en = ethylenediammine)

Which of the following complex species is not expected to exhibit optical isomerism?

The total number of possible isomers of the complex compound [CuII(NH₃)₄][PtIICl₄] is

The number of geometric isomers that can exist for square planar [Pt (Cl) (py) (NH₃) (NH₂OH)]+ is (py = pyridine):

The IUPAC name for [Pt(py)₄] [PtCl₄] is

The IUPAC name for [(CO)₃Fe(CO)₃ Fe(CO)₃] is

The IUPAC name for [(NH₃)₅ Cr– (OH) – Cr(NH₃)₅]5+ is a -hydroxo-bis (pentaammine dichromium) (5+) ion b -hydroxo-bis (decaamminedichromium) (5+) ion

Which among the following will be named as dibromidobis-(ethylenediamine) chromium (III) bromide?

Among the ligands NH₃, en, CN– and CO, the correct order of their increasing field strength, is

Among the following which are ambidentate ligands? (i) - NO (ii) - NO (iii) EDTA 4– (iv) C₂O₄ 2– (v) SCN –

The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the f…

Ammonia gas does not evolve from the complex FeCl₃.4NH₃ but it gives white precipitate with aqueous solution of AgNO₃. Coordination number of central metal ion in the above complex is six. Give IUPAC name of the complex

For a certain reaction A → products, the t1/2 as a function of [A]0 is given as below: [A]0 (M) : 0.1 0.025 t1/2 (min) : 100 Which of the following is/are true ?

The initial rates of reaction 3A + 2B + C → Products, at different initial concentrations are given below: Initial rate M s–1 [A]0 , M [B]0 , M [C]0 , M 5.0 × 10–3 0.010 0.005 0.010 5.0 × 10–3 0.010 0.005 0.015 1.0 × …

The hypothetical reaction A B 2AB; → follows the following mechanism Fast A A A, → Slow Fast A B AB B,A B AB. → → The order of the overall reaction is

The reaction of hydrogen and iodine monochloride is given as: H g 2ICl g 2HCl g I g → The reaction is of first order with respect to H₂ (g) and ICl(g), following mechanisms were proposed. Mechanism A: H g 2ICl g 2HCl …

With passage of time, the concentration of reactants …A… and rate of reaction …B… . Here A and B are

In most cases, for a rise of 10K temperature the rate constant is doubled to tripled. This is due to the reason that (a)collision frequency increases by a factor of 2 to 3. (b)fraction of molecules possessing threshol…

Collision theory is used to explain how chemical species undergo a reaction. Using this theory and the kinetic molecular model, which of the following does NOT influence the rate of a chemical reaction?

Choose the correct answer out of the following choices. Assertion (A): Most people think diamond is forever. Reason (R): Conversion rate of diamond to graphite is very low.

Assertion (A): In rate law, unlike in the expression for equilibrium constants, the exponents for concentrations do not necessarily match the stoichiometric coefficients. Reason (R): It is the mechanism and not the ba…

For the reaction 4 A B C D → , which of the following statement is not correct ?

Select the rate law that corresponds to the data shown for the following reaction A B C → Expt. (A) (B) Initial rate 0.012 0.035 0.10 0.024 0.070 0.80 0.024 0.035 0.10 0.012 0.070 0.80

For the following reaction: NO₂(g) + CO(g) → NO(g) + CO₂(g), the rate law is: Rate = k [NO₂]2.If 0.1 mole of gaseous carbon monoxide is added at constant temperature to the reaction mixture which of the following stat…