1. metathesis is chemical reaction in which one part of each compounds interchange to form
a. one new compound
b. three new compounds
c. four new compounds
d. two new compounds
Correct Answer: d
2. metathesis is also called as
a. single displacement reaction
b. double displacement reaction
c. both of these
d. none of these
Correct Answer: b
3. what is special feature of metathesis and metathesis polymerization
a. use of solvent
b. use of catalyst
c. use of initiator
d. none of these
Correct Answer: b
4. what is main driving force for ring opening metathesis
a. relief of ring strain
b. solvent concentration
c. catalyst activity
d. all of these
Correct Answer: a
5. which functional group has tendency to poison grubb’s catalyst
a. sulfide
b. nitrile
c. hydrate
d. none of these
Correct Answer: b
6. which one group can affact molydenum or tungsten catalyst in ring opening metathesis polymerization
a. hydrate
b. oxygenated group
c. amine
d. none of these
Correct Answer: b
7. which of following is not related to other in term of class of catalyst
a. alkene hydrogenation by wilkinson catalyst
b. haber-bosch process by Pt-Rh gauze
c. ethene epoxidation by Ag
d. all are related
Correct Answer: a
8. catalytic cracking of heavy petroleum distillates is done by
a. Ni-iron oxids
b. pt and its other catalyst
c. iron on silica support
d. zeolites
Correct Answer: d
9. nitric acid formation by heterogenous catalyst is called
a. monsano process
b. haber-bosch process
c. haber process
d. none of these
Correct Answer: b
10. which of following is example of heterogenous catalysis
a. alkene polymerization by metallocene catalyst
b. alkene catalysis by zeiglar natta
c. fischer-tropschcarbon chain reaction
d. all of these
Correct Answer: d
11. which catalyst is used in fischer tropsch carbon chain growth
a. Fe
b. Ru
c. Ni
d. all of these
Correct Answer: d
12. in which form catalyst is used in fischer tropsch process
a. gas form
b. metal oxide
c. solid form
d. none of these
Correct Answer: b
13. zieglar natta catalyst is associated with
a. hydrogenation
b. polymerization
c. hydroboration
d. none of these
Correct Answer: b
14. catalyst used in haber process
a. Fe2O3
b. SiO2+Fe2O3
c. K2O
d. none of these
Correct Answer: b
15. catalytic system in production of SO2 in contact process
a. V2O5/K2O/K2SO4
b. V2O5/SiO2/K2SO4
c. V2O5/Al2o3/K2O
d. none of these
Correct Answer: b
16. which state about zeolite is incorrect
a. zeolite are aluminosilicate
b. no zeolite occur naturally
c. both of these
d. none of these
Correct Answer: b
17. high catalytic activity of zeolite arise from
a. lewis acidity of Al
b. bronsted acidity of Al
c. bronsted acidity of Ni
d. none of these
Correct Answer: b
18. in catalytic onverter, which metal act as catalyst
a. Pt
b. Pd
c. Rh
d. all of these
Correct Answer: d
19. Ziegler Natta catalyst is
a. Fe
b. Mo
c. Pt
d. TiCl3+Al(C2H5)3
Correct Answer: d
20. in homogenous catalysis, catalyst present in
a. different phase
b. Same phase
c. both of these
d. none of these
Correct Answer: b
21. catalyst accelerate rate of reaction is
a. Negative catalyst
b. positive catalyst
c. autocatalyst
d. none of these
Correct Answer: b
22. wilkinson catalyst has industrial application for
a. heterogenous catalysis
b. homogenous catalysis
c. Esterification
d. none of these
Correct Answer: b
23. wilkinson catalyst is
a. V2O5
b. RhCl3(PPh)3
c. K2O
d. none of these
Correct Answer: b
24. catalytic poisons are
a. promoter
b. accelerator
c. anti catalyst
d. none of these
Correct Answer: c
25. enzymes are
a. biocatalyst
b. proteins
c. both of these
d. none of these
Correct Answer: c
26. change in chemical reaction due to catalyst is
a. Activation energy
b. Entropy
c. Internal energy
d. enthalpy
Correct Answer: a
27. catalyst used in cracking process
a. V2O5
b. Mo
c. Al2(SiO3)3
d. none of these
Correct Answer: c
28. catalyst increase the rate of reaction
a. by lowering activation energy
b. by increasing activation energy
c. by forming intermediate complex
d. by changing equilibrium constant
Correct Answer: a
29. enzymes can catalyze reaction by use of
a. metal
b. hydroxide
c. hydrate
d. all of these
Correct Answer: a
30. metal ion catalysis is
a. heterogenous catalysis
b. both of these
c. homogenous catalysis
d. none of these
Correct Answer: c
31. metal ion catalysis is also known as
a. material catalysis
b. enzyme catalysis
c. electrostatic catalysis
d. none of these
Correct Answer: c
32. metal ion catalysis utilizes
a. material enzyme
b. hydroxide enzyme
c. metalloenzyme
d. none of these
Correct Answer: c
33. metal ion catalyst use metalloenzyme with
a. closely bound metal ion
b. loosely bound metal ion
c. tightly bound metal ion
d. none of these
Correct Answer: c
34. the most tightly bound metal ions
a. Co, Mn,Ni
b. Na, K , Mg
c. Fe, Cu, Zn
d. none of these
Correct Answer: c
35. metal ion either assist in reaction or
a. control the reaction
b. slow down reaction
c. no effect
d. inhibit the reaction
Correct Answer: d
36. metal activate the enzymes by changing its
a. color
b. size
c. molecules
d. shape
Correct Answer: d
37. Metal facilitates the release of proton from bound water to produce ——and start catalytic reaction
a. nucleophilic hydroxide ion
b. nucleophilic carboxide ion
c. electrophilic hydroxide ion
d. electrophilic carboxide ion
Correct Answer: a
38. metal facilitates the release of proton from bound water in the presence of
a. carbonic anhydrase only
b. hydronic anhydrase
c. carbonic anhydrase and other enzymes
d. none of these
Correct Answer: c
39. with the polarization of OH bond, the acidity of water
a. increase
b. decrease
c. remains same
d. constant
Correct Answer: a
40. metal ions also has ability to stablize
a. charge density
b. bond distance
c. transition state
d. none of these
Correct Answer: c
41. without catalyst, hydrogenation happens
a. fast
b. not happen
c. vigorousely
d. slowly
Correct Answer: d
42. common catalyst for hydrogenation
a. Pd
b. Rh
c. Nickel
d. all of these
Correct Answer: d
43. Raney nickel is prepared by treating Ni-Al alloy
a. washing soda
b. Al metal
c. caustic soda
d. none of these
Correct Answer: c
44. hydrogenation in which chirality is introduced in prochiral molecule
a. symetric hydrogenation
b. both of these
c. asymetric hydrogenation
d. none of these
Correct Answer: c
45. asymetric hydrogenation is
a. nickel catalyzed
b. pt catalyzed
c. Rhodium catalyzed
d. Pd catalyzed
Correct Answer: c
46. how is selective hydrogention is achieved
a. heat supplied
b. through promoter
c. by catalyst
d. none of these
Correct Answer: c
47. which is most widely used catalyst for aromtic compounds hydrogention
a. Nickel
b. Zinc
c. iron
d. Cadmium
Correct Answer: a
48. BINAP is ——containing catalyst
a. N
b. O
c. S
d. P
Correct Answer: d
49. In asymetric hydrogenation if catalyst is chiral then product is
a. R
b. S
c. Racemate mixture
d. R or S
Correct Answer: d
50. monsanato mechanism process used
a. Rh based catalyst
b. Ir based catalyst
c. Co based catalyst
d. all
Correct Answer: a
