A catalyst
Options:
A.Initiates a reaction
B.Lowers the activation energy of reacting molecules
C.Is capable of reacting with any one of the reactants
D.Can not be recovered chemically unchanged at the end of a chemical reaction
Answer: Option B

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More Questions on This Topic :

Question 1. For reaction, P + 2 → 3R, molar rate of consumption of P is
  1.    Double of that of Q
  2.    Same as that of Q
  3.    Half of that of Q
  4.    2/3rd of that of Q
Answer: Option C
Question 2. For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min⁻¹ . What will be the conversion for a PFR with a space velocity of 0.2 min⁻¹? Assume that all the other operating conditions are the same for CSTR and PFR.
  1.    0.15
  2.    0.30
  3.    0.60
  4.    0.90
Answer: Option C
Question 3. The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is
  1.    0.5
  2.    -0.5
  3.    1
  4.    1.5
Answer: Option B
Question 4. A backmix reactor
  1.    Is same as plug-flow reactor
  2.    Is same as ideal stirred tank reactor
  3.    Employs mixing in axial direction only
  4.    Is most suitable for gas phase reaction
Answer: Option B
Question 5. With increase in temperature, the rate constant obeying Arhenious equation
  1.    Increases
  2.    Decreases
  3.    Decreases exponentially
  4.    Can either increase or decrease ; depends on the frequency factor
Answer: Option C
Question 6. Thermodynamic equilibrium constant in a system is affected by
  1.    Inerts
  2.    Pressure
  3.    Temperature
  4.    All of the above
Answer: Option C