πŸ“Š Physical Pharmaceutics 2
Q. Which of the following method/s used for determination of order of reaction?
  • (A) Graphic method
  • (B) Substitution method
  • (C) Half life method
  • (D) All of the above -
πŸ’¬ Discuss
βœ… Correct Answer: (D) All of the above -
πŸ“Š Physical Pharmaceutics 2
Q. The unit of rate constant for second order reaction is
  • (A) litre.mole-2 sec-2
  • (B) litre.mole-2 sec-1
  • (C) litre
  • (D) litre.mole-1 sec-1
πŸ’¬ Discuss
βœ… Correct Answer: (D) litre.mole-1 sec-1
πŸ“Š Physical Pharmaceutics 2
Q. Which of the following is the half life of first order reaction
  • (A) t1/2 = A0/2k
  • (B) t1/2 = 0.693/2k
  • (C) t1/2 = 2k
  • (D) t1/2 = 0.693/k
πŸ’¬ Discuss
βœ… Correct Answer: (D) t1/2 = 0.693/k
πŸ“Š Physical Pharmaceutics 2
Q. Which of the following is the half life of zero order reaction
  • (A) t1/2 = Ao/2k
  • (B) t1/2 = 0.693/2k
  • (C) t1/2 = Ao/2
  • (D) t1/2 = 2k/ Ao
πŸ’¬ Discuss
βœ… Correct Answer: (A) t1/2 = Ao/2k
πŸ“Š Physical Pharmaceutics 2
Q. In the equation, Rate = k[C]c[D]d, the order of the above reaction is
  • (A) k
  • (B) C + D
  • (C) [C] *[D]
  • (D) c + d
πŸ’¬ Discuss
βœ… Correct Answer: (D) c + d
πŸ“Š Physical Pharmaceutics 2
Q. When rate is independent of the reactant concentration, then it is called
  • (A) zero order reaction.
  • (B) Pseudo zero order reaction
  • (C) First order reaction
  • (D) Second order reaction
πŸ’¬ Discuss
βœ… Correct Answer: (A) zero order reaction.
πŸ“Š Physical Pharmaceutics 2
Q. Rate of reaction is the
  • (A) number of reactant molecules or atoms that take part in chemical reactions to give the products.
  • (B) sum of exponents or powers of concentration terms in the rate equation
  • (C) time required for reactant concentration to decrease to 90% of the initial concentration.
  • (D) speed at which chemical reaction takes place
πŸ’¬ Discuss
βœ… Correct Answer: (D) speed at which chemical reaction takes place
πŸ“Š Physical Pharmaceutics 2
Q. Chemical kinetics is the study of the
  • (A) rate of chemical reactions
  • (B) particle size
  • (C) rheological property
  • (D) interfacial tension
πŸ’¬ Discuss
βœ… Correct Answer: (A) rate of chemical reactions
πŸ“Š Physical Pharmaceutics 2
Q. In a chemical reaction, the rate constant is independent of the initial concentration. Which one of them is the order?
  • (A) first
  • (B) second
  • (C) third
  • (D) zero
πŸ’¬ Discuss
βœ… Correct Answer: (D) zero
πŸ“Š Physical Pharmaceutics 2
Q. Which-one of the following orders have abundant applications in biological processes?
  • (A) first
  • (B) second
  • (C) third
  • (D) zero
πŸ’¬ Discuss
βœ… Correct Answer: (A) first