1. A complex compound in which oxidation number of a metal is zero
a. Ni(CO)4
b. K4[Fe (CN)6]
c. K3[Fe (CN)6]
d. [Pt (NH4)4]
Correct Option: a
2. A ligand can be regorded as
a. Lewis base
b. Lewis acid
c. Bronsted base
d. Bronsted acid
Correct Option: a
3. Among the following meta carbonyl C- O bond order is lower in
a. V(CO)6-
b. [Mn (CO) 6]+
c. Fe(CO)5
d. Cr (CO)6
Correct Option: a
4. An octahedral complex is formed when
a. dsp2
b. sp2d2
c. d2 sp3
d. sp3
Correct Option: c
5. Number of bridging carbonyls in Co4 (CO)12
a. 6
b. 3
c. 5
d. 2
Correct Option: b
6. Total number of electrons in Mo (CO)6
a. 82
b. 18
c. 36
d. 54
Correct Option: b
7. Range of stretching frequency of terminal carbonyl in neutral metal carbonyl is
a. 1750 –1850
b. 1650—1450
c. below 2000
d. 1850—2150
Correct Option: d
8. Which statement is incorrect about metal carbonyl
a. all are diamegnatic
b. all are liquid at room temperature
c. all carbonyls decompose on heating
d. all are typical ionic compounds
Correct Option: d
9. In non bridged structure of Mn2 (CO) 10 bond distance between Mn— Mn
a. 2.71
b. 2.79
c. 1.79
d. 3.79
Correct Option: b
10. Bomd order of NO is
a. 3
b. 2.5
c. 1.5
d. 2
Correct Option: b
11. The liquid range for NaCl salt is
a. 120
b. 709
c. 801
d. 1000
Correct Option: b
12. The fused salts of alkali halide are ______ electrolytes
a. poor
b. none
c. Good
d. bad
Correct Option: c
13. The solution of metal in metal halide are deeply ___________
a. Colorless
b. non toxic
c. toxic
d. colored
Correct Option: d
14. The highest dielectric constant is _______
a. BrF3
b. HF
c. HCN
d. NH3
Correct Option: c
15. The acidic and basic character of solvent depends upon the nature of _____
a. Reacting specie
b. Reactant
c. Solvent
d. Product
Correct Option: a
16. CHCl3 is the example of solvent
a. Protic
b. emphoteric
c. aq.solvent
d. a protic
Correct Option: d
17. The dipole moment of polar Solvent is _______
a. negligible
b. nfinite
c. high
d. low
Correct Option: c
18. The value of dielectric constant of liq BrF3
a. 70
b. 80
c. 17
d. 6
Correct Option: b
19. The high solubility’s of certain salts liq SO2 are due to ______
a. Solvate formation
b. complex formation
c. redox react
d. inner formation
Correct Option: a
20. Blue solutions of metals in liq, NH3 are
a. paramagnetic
b. Diamagnetic
c. Soluble
d. in soluble
Correct Option: a
21. The formula of laughing gas is _______
a. N2O
b. NO2
c. N2S
d. H2
Correct Option: a
22. In the amphoteric reactions of liq ammonia the colour of Zinc amide
a. White ppt
b. purple
c. brownish
d. Green
Correct Option: a
23. HF undergoes auto ionization to give H+ and _______
a. HF-3
b. HF+3
c. HF2-
d. HF
Correct Option: c
24. AlF3 is readily in soluble is HF but dissolves in addition of _____
a. Na F
b. CrF3
c. 3NaF3
d. CrF2
Correct Option: a
25. When liq SO2 undergoes auto ionization sulphite SO3-2 behave as
a. acid
b. solute
c. solvent
d. base
Correct Option: d
26. Dilute H2SO4 becomes more toxic because of it absorb in ______
a. skin
b. surface
c. solvent
d. surface
Correct Option: a
27. The value of Eo for Cu is _______
a. 0.7
b. -0.76 V
c. 0.0 V
d. -0.0 V
Correct Option: b
28. Pure liq SO2 is pure ______
a. insulator
b. liquid
c. conductor
d. Semiconductor
Correct Option: c
29. __________ is used as solvent is producer of TPA
a. HF
b. HCN
c. HCl
d. CH3COOH
Correct Option: d
30. Kinetic stability deals……….of complex
a. Reactivity
b. Nature
c. Stabilization
d. bond
Correct Option: a
31. The relationship between 2nd order and half life period is
a. 1.5/ka
b. 1/ka
c. 0.693/k
d. 1.5/k
Correct Option: b
32. If free energy change is –ve the electron exchange relation will be
a. vigorous
b. imposible
c. fast
d. Slow
Correct Option: c
33. In anation reaction H2O is ……… ligand
a. Leaving
b. dangerious
c. entering
d. Neutral
Correct Option: c
34. [AlF6]3- is example of ……………..
a. anation
b. acid
c. Labile
d. inert
Correct Option: c
35. If energy of d-orbital contain at least one electron then complexes are
a. stable
b. unstable
c. Inert
d. Labile
Correct Option: c
36. Different ions will split up by different compounds to given of
a. Same density complexes
b. different density complexes
c. Different coloured complexes
d. Same coloured complexes
Correct Option: c
37. Ions which are produced from ligand are
a. cation
b. anion
c. neutral
d. complex ion
Correct Option: d
38. The number of dative bonds to the central metal ion is its
a. Dative number
b. complex number
c. Coordination number
d. oxidation number
Correct Option: c
39. Due to ligand action of splitting the color of transition metal compound, the change occurs at
a. s orbital
b. f-orbital
c. d-orbital
d. p-orbital
Correct Option: c
40. Ligands which can form two coordinate bonds from each ion or molecule to the transition metal ion are known as
a. dentate ligand
b. ligand ions
c. polydentade ligand
d. bidentate ligand
Correct Option: d
41. How many M—M bonds are present in [CpMo(CO3)]2
a. 8
b. 0
c. 1
d. 2
Correct Option: b
42. Which of following is the incorrect statement about Zeies Salt?
a. Zeies salt is diatomic
b. oxidation state of Pt is +2
c. Oxidation state of Pt is +1
d. All the Pt-Cl bond in Zeies is equal
Correct Option: d
43. Which of following complexes has highest oxidation state of metal?
a. Na2 [FeCO4]
b. k[MnO5]
c. Mn(CO)5Cl
d. MnO4
Correct Option: a
44. Which of following complex is in which organic ligand is having only bond with metal?
a. W (CH3)6
b. K[PtCl3(C2H4)]
c. Mn (CO)5Cl
d. H3PO4
Correct Option: a
45. Metal carbonyls have used extensively in _______ synthesis
a. Stereo specific
b. simple
c. complex
d. specific
Correct Option: a
46. Water gas is an important industrial fuel and source of _____
a. CH4
b. HCl
c. H2
d. O2
Correct Option: c
47. The frequency of Cr (CO)6 is ______
a. 5100
b. 2000
c. 1801
d. 2140
Correct Option: b
48. The most important x-acceptor ligand is _____
a. NO+
b. PCl3
c. PCl5
d. CO
Correct Option: d
49. The colour of [Fe (NO)(H2O)5]SO4 is
a. Brown red
b. purple
c. red
d. Brown black
Correct Option: d
