The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called_________________?

Related Mcqs:

1. Photo-chemical reactions occur in presence of ___________________?

   A. Sunlight
   B. Darkness
   C. Solid catalysts
   D. Monochromatic radiation only

2. Fractional conversion _____________ with increase in pressure for ammonia synthesis reaction i.e., N2 + 3H2 ⇌ 2NH3?

   A. Increases
   B. Decreases
   C. Remains unchanged
   D. Unpredictable from the data

3. The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called_________________?

   A. Operational yield
   B. Relative yield
   C. Selectivity
   D. None of these

4. The equilibrium constant of a catalytic chemical reaction _______________ due to the presence of?

   a catalyst.
   A. Increases
   B. Decreases
   C. Remain unaffected
   D. Unpredictable from the data

5. For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of ?

   A. Ideal plug flow
   B. Bypass
   C. Dead zone
   D. Channelling

6. The molecularity and the order of reaction respectively, for the hydrolysis of methyl acetate in presence of acids are_______________?

   A. 2 & 1
   B. 11 & 2
   C. 2 & 2
   D. 1 & 1

7. On application of pressure to the equilibrium system, ice ⇌ water; which of the following phenomenon will occur ?

   A. Water will evaporate
   B. Equilibrium will not be attained
   C. More ice will be formed
   D. More water will be formed

8. In the hydrodealkylation of toluene to benzene, the following reactions occur: C7H8 + H2 → C6H6 + CH4 2C6H6 ⇌ C12H10 + H2 Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is_______________________?

   A. 0.16
   B. 0.144
   C. 0.152
   D. 0.136

9. Ionic reactions occur in____________________?

   A. Solid state only
   B. Liquid state only
   C. Solutions
   D. Any state

10. Which of the following is the most suitable for isothermal operation?

    A. Batch reactor
    B. Back-mix reactor
    C. Plug-flow reactor
    D. Fixed bed reactor