Chemistry Question Bank

1.1 mole of A is mixed with 2.2 mole of B and the mixture is kept in a one-litre flask till the equilibrium, A + 2B 2C + D is reached. At equilibrium 0.2 mol of C is formed. The equilibrium constant of the above react…

When 3 moles of ethyl alcohol are mixed with 3 moles of acetic acid, 2 moles of ester are formed at equilibrium according to the equation CH3COOH + C2H5OH CH3COOC2H5 + H2O The value of the equilibrium constant for the…

In the above reaction one mole each of the acetic acid and alcohol are heated in the presence of little conc. H2SO4. On equilibrium being attained

If Kp for a reaction A (g) + 2 B (g) 3 C (g) + D (g) is 0.05 atm at 1000 K. Its Kc in terms of R will be

For reaction PCl3 (g) + Cl2 (g) PCl5 (g), the value of Kc at 250ºC is 26. The value of Kp at this temperature will be :

Kc for the reaction N2 (g) + O2 (g) 2 NO (g) at 300 K is 4.0 × 10–6. Kp for the above reaction will be (R = 2 cal mol–1 K–1)

For which one of the following reactions p c K K ? (a) PCl PCl Cl (b) N O 2NO (c) N 3H 2NH (d) 2SO 2SO O

Calculate c K for the reversible process given below if p K 167 and T = 800ºC CaCO (s) CaO(s) CO (g)

In which of the following gaseous reaction, the value of Kp will be equal to Kc

For N2(g) + 3H2(g) 2NH3(g) + heat

In which of the following equilibria, the value of Kp is less than Kc

For the reaction H2(g) + I2(g) 2HI(g) at 721K the value of equilibrium constant (Kc) is 50. When the equilibrium concentration of both is 0.5M, the value of Kp under the same conditions will be

The reaction between N2 and H2 to form ammonia has Kc = 6 × 10–2 at the temperature 500°C. The numerical value of Kp for this reaction is

In which of the following reaction Kp > Kc

What is the effect of halving the pressure by doubling the volume on the following system at 500°C H2(g) + I2(g) 2HI(g)

In which of the following structures all the bonds are present at 90o?

Correct statement regarding molecules SF4, CF4 and XeF4are:

The pair of species with similar shape is :

The geometrical arrangement of orbitals and shape of I3– are respectively:

The shape of the noble gas compound XeF4is :

BrF3 molecule, the lone pairs occupy an equatorial position to minimize.

The shape of the molecule depends on the _______

The species having pyramidal shape is

Shape of XeF4 is

Match the following Column and choose the correct option from the codes given below. Column I Column II A. BeCl2 1. Linear B. BF3 2. Trigonal planar C. CO2 Codes : A B C (a) (b) (c) (d) Ans. (c) Sol. BeCl2, CO2 linear…