When the value of Kc is very small then_______________________?

Related Mcqs:

1. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

   A. Group IA
   B. Group IB
   C. Group VIIA
   D. Group VIII

2. For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?

   A. Kc is generally greaer than Kp
   B. Kc is generally less than Kp
   C. Kc is generally equal to Kp
   D. Kc is equal to Kp if the total moles of reactants and products are equal

3. Kc value has_______________?

   A. No units
   B. Units
   C. Both A & B
   D. None

4. In which of the following equilibria will Kc and Kp have the same value ?

   A. PCI5 = PCI3 + Cl2
   B. N2 + 3H2 = 2NH
   C. 2CO + O2 = CO2
   D. N2 + O2 = 2NO

5. The value of e/m ratio of electron is________________?

   A. 6.02 x 1023 C/kg
   B. 1.7588 x 1020 C/kg
   C. 9.1095 x 10-31 C/kg
   D. 1.7588 x 1011 C/kg

6. Which of the following will have highest value of electron affinity_________________?

   A. F
   B. Cl
   C. Br
   D. I

7. Which one is the right value for R ?

   A. 0.0821 atm dm3k-1mol-
   B. 0.0821 atm m3k-1mol-1
   C. 2 cal k-1 mol-1
   D. 8.314 Nm2k-1mol-1

8. Greater value of standard reduction potential greater will be tendency__________________?

   A. to get oxidized
   B. to get reduced
   C. to accept electrons
   D. both B and C

9. The given dissociation constant (Ka) value 1.3×10-10 is of_________________?

   A. Alcohol
   B. Acetic acid
   C. Water
   D. Phenol

10. For a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?

    A. 3P
    B. P/3
    C. 3P/T
    D. 6P

    Submitted by: Muhammad Ali Kunbhar