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NEET 2020 Chemistry : Equilibrium Quiz -1(25.06.2019)
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Question 1
For the reversible reaction :
N2(g) + 3H2(g) 2NH3(g) + heat
The equilibrium shifts in forward direction -
N2(g) + 3H2(g) 2NH3(g) + heat
The equilibrium shifts in forward direction -
Question 2
Which of the following statements is correct for a reversible process in a state of equilibrium?
Question 3
Which of these is least likely to act as Lewis base?
Question 4
Which one of the following pairs of solution is not an acidic buffer?
Question 5
If pH of a saturated solution of Ba(OH)2 is 12, the value of its Ksp is
Question 6
What is the [OH-] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2 ?
Question 7
The dissociation constants for acetic acid and HCN at 25 °C are 1.5 x 10-5and 4.5 x 10-10, respectively. The equilibrium constant for the equilibrium,
CN- + CH3COOHHCN + CH3COO-
would be
CN- + CH3COOHHCN + CH3COO-
would be
Question 8
For a given exothermic reaction, Kp and Kp’ are the equilibrium constants at temperatures T1 and T2 respectively. Assuming that heat of reaction is constant in temperatures range between T1 and T2, it is readily observed that:
Question 9
A weak acid, HA, has a Ka of 1.00×10-5. If 0.100 mole of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closest to :
Question 10
Calculate the pOH of a solution at 25 °C that contains 1×10-10 M of hydronium ions.
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Oct 20NEET & AIIMS