JEE CHEMISTRY UNIT 06
QUIZ NO 1
TOTAL QUESTIONS = 20


1. Which of the following is a characteristic of chemical equilibrium?;Concentrations of reactants and products are equal;The rate of the forward reaction equals the rate of the backward reaction;The reaction stops completely;The reaction is irreversible;B


2. The pH of a 0.01 M HCl solution is


3. For a reversible reaction, the equilibrium constant is given as


4. The ionization constant of a weak acid is represented by


5. Which of the following is a characteristic of a buffer solution?


6. The pH of a buffer solution can be calculated using


7. Which of the following represents the relationship between Kp and Kc?


8. For a buffer solution, the pH is maximum when


9. Which of the following pairs represents a basic buffer?


10. The equilibrium constant for a reaction is 1. What does this indicate?


11. Which of the following represents a basic buffer?


12. Which of the following pairs acts as an acidic buffer?


13. Le Chatelier's principle predicts the effect of


14. The equilibrium constant for a reaction is 1. What does this indicate?


15. The pKa value of a strong acid is


16. For the reaction 2NO2 ⇌ N2O4, the equilibrium constant in terms of partial pressures is given by


17. For a reaction at equilibrium, if Kc > 1, then


18. The Henderson-Hasselbalch equation is used to calculate


19. The solubility product (Ksp) of a salt increases with


20. Which of the following solutions has the highest pH?



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