Theories of Catalysis
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Q. 13. NH3 converts into N2 and H2 according to the following equation:-2NH3 = N2 + 3H2. x% of NH3 is converted into product. Rate if diffusion of gaseous mixture is double than that of SO2 under identical conditions. Calculate x. 1)98.23% 2)31.25% 3)25.27% 4)6.25%
Q. 47. Consider the following reaction: Reagents Glucose ------------------->Mannose The above reaction is known as: (a) Anomerisation (b) Racemisation (c) Epimerisation (d) Conversion.
Q. Given below, catalyst and corresponding process/reaction are matched. The mismatch is
- [RhCl(PPh3)3] : hydrogenation
- TiCl4+Al(C2H5)3 : polymerization
- V2O5 : Haber-Bosch process
- nickel: hydrogenation
Q. 26. Explain the three essential conditions for Hybridization with reference to BeCl2
Q. what is hybridisation of nh+
Q. 13. Cu2S acts as reducing or oxidising or both, agent?
Q.
Which of the following types of metals make the most efficient catalysts [DPMT 1985]
Alkali metals
Transition metals
Alkaline-earth metals
Radioactive metals
Q. Potential energy difference between the reactant and activated complex is called . The minimum amount of energy needed for the particles to react is
- threshold energy
- activation energy
- kinetic energy
- potential energy
Q. hybridization of N in NO2+ , NO3- and NH4+ are
Q.
sol has a negative charge. Capacity to precipitate it is highest in
[CPMT 1982, 89, 93; DPMT 1983;MP PET 1999]
Q. A reversible process is isoenthalpic at isothermal condition .Prove it.
Q. i)2H2O2→Pt2H2O +O2ii)2H2O2 −−−−→Glycerol2H2O +O2
What is the role of Pt and glycerol in the above reaction?
What is the role of Pt and glycerol in the above reaction?
- Both act as negative catalysts
- Both act as positive catalysts
- Pt acts as a negative catalyst and glycerol acts as a positive catalyst
- Pt acts as a positive catalyst and glycerol acts as a negative catalyst