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1. The electrolyte used in fuel cell is:
A) KOH B) NaCl (aq)
C) NaNO3 D) MOLTEN NaCl
2. Which of the following compounds react slower than benzene in electrophilic substitution reaction?
A) Nitrobenzene B) Phenol
C) Aniline D) Toluene
3. Water has maximum density at:
A) -4 oC B) -1 oC
C) 0 oC D) 4 oC
4. Which of the following is addition polymer?
A) Polyester B) Epoxy resins
C) Acrylic resins D) Polyamides
5. The color of transition metal complexes is due to transition of electrons between:
A) p to d orbitals B) d to d orbitals
C) p to p orbitals D) d to p orbitals
6. Reagent used to reduce a carboxylic acid to an alkane is:
A) Ni/H2 B) NaBH4
C) P/Hx D) LiAIH4
7. The smog having high contents of SO2 is called:
A) Oxidizing smog
B) Neutral smog
C) Basic smog
D) Reducing smog
8. The best standard for the calculations of relative atomic masses is:
A) Hydrogen-1.008
B) Carbon-12
C) Carbon-13
D) Oxygen 15
9. Industrially water gas is converted into methanol by using catalyst:
A) CuO + ZnO
B) CuO + Cr2O2
C) Al2O2 + ZnO
D) ZnO+ Cr2O2
10. Precipitation occurs when the product of ionic concentrations is:
A) Greater than Ksp
B) Less than Ksp
C) Equal to Ksp
D) Equal to unity
11. The influence of temperature on reactions rate is predicted by:
A) Free energy change B) Wander waal’s equation
C) Arrhinias equation D) Kinetic equation
12. Maximum number of electrons in a subshell is given by:
A) 2(2l-1)
B) 2(2l+1)
C) 2(l+1)
D) 2l+1
13. If energy of the activated complete is close to energy of reactants it means that the reaction is:
A) Fast
B) Moderate
C) Slow
D) Very slow
14. The charge on one proton in:
A) 1.602x10-31C
B) 1.602x10-27C
C) 1.602x10-19C
D) 1.602x10-11C
15. At 1499 mm of Hg, water will boil at:
A) 120°C
B) 119°C
C) 109°C
D) 99°C
16. The natural abundance of 79Br nad 81Br is_____ and ____ respectively.
A) 75, 53; 74, 47
B) 49,49; 50, 54
C) 50,54; 49,49
D) 59; 40
17. The octahedral geometry of the examples [Co(NH3)5]3+ has hybridization:
A) Sp3d
B) Spd4
C) Sp3d3
D) Sp2d3
18. Which of the following factor(s) effect a reversible chemical reaction in accordance with the Le chatellier principle?
A) Pressure
B) Temperature
C) Concentration
D) Pressure, concentration and temperature
19. The nature of Lysine is:
A) Acidic
B) Basic
C) Neutral
D) Weakly acid
20. Which of the following fertilizer contain 75% paint nutrients?
A) Ca(H3PO4)2
B) (NH4)2HPO4
C) (NH2)2CO
D) NH4NO2
21. Which one of the following has highest lattice energy?
A) NaCl
B) KCl
C) KBr
D) LlCl
22. The unit of rate constant is same as that of rate of reaction is:
A) First order reaction
B) Zero order reaction
C) Second order reaction
D) Third order reaction
23. Hybridization of carbon in -CHO group is:
A) Sp
B) Sp2
C) Sp3
D) Dsp
24. A single chloride free radical can destroy ozone molecule up to:
A) 100,000
B) 10,000
C) 1000,0000
D) 1000
25. Which of the following is NOT a fatty acid?
A) Phenyl acetic acid
B) Steric acid
C) Palmitic acid
D) Oleic acid
26. Dehydration of ethanol at 180°C in the presence of conc. H2SO4 gives:
A) Ethene
B) Ethane
C) Ethyne
D) Ether
27. The v/m value for the canal rays is maximum for:
A) Hydrogen
B) Nitrogen
C) Helium
D) Argon
28. Which one is NOT a nucleophile?
A) BH3
B) NH3
C) -NH3
D) -OR
29. In contact process arsenic impurities act as poison for:
A) Fe(OH)3
B) V2O5
C) Fe2O3
D) H2S2O7
30. The ratio of Sigma and Pi bonds in benzene is:
A) 4;1
B) 1:4
C) 1;2
D) 3:1
31. The order of energy level is 19K is:
A) 4s, 4p
B) 4s, 3d
C) 3p, 4s
D) 3s, 3d
32. The Kc units for the reaction N2(g) + 3H2(g) ⇌ 2NH3 (g) are :
A) Mol-1dm+6
B) Mol-2dm+3
C) Mol-2dm+6
D) Mol-1dm+3
33. Which of the following is secondary pollutant?
A) CO
B) SO2
C) PAN
D) NO2
34. Valence electronic configuration Cu+2 is (29Cu)
A) 5d6
B) 3d9
C) 3d5
D) 3d7
35. When two moles of H2 and one mole of O2 react to form H2O 484 KJ heat is evolved. What is ∆H2
for one mole of H2O7
A) -484Kjmol-1
B) -242KJmol-1
C) -121KJmol-1
D) +242KJmol-1
36. The hydration energy of Mg2+ is less than:
A) Na+
B) Ca2+
C) Li+
D) Al3+
37. Which catalyst is used to oxidize benzene ring?
A) FeBr3
B) V2O5
C) Fe+Al2O3
D) Kaney Ni
38. Reaction of CH3CH2MgBr with ethylene exoxide gives:
A) Ethanol
B) 1-butanol
C) 2-butanol
D) Butane
39. The shielding effect of inner electrons is responsible for:
A) Decreasing ionization energy
B) Having no effect on ionization energy
C) Increasing ionization energy
D) Increasing electronegativity
40. Which type of alkyl halides fives SN2 mechanism?
A) Secondary alkyl halides
B) Tertiary alkyl halides
C) Vinyl halides
D) Primary alkyl halides
41. Which one of the following bases has highest Kh value?
A) NH4OH
B) NaOH
C) Ca(OH)2
D) CH3NH2
42. For the formation of ionic bond electronegativity difference should be:
A) Equal to zero
B) Equal to 0.5
C) More than 1.7
D) Less than 1.7
43. Which alkaline earth metal makes peroxides?
A) Be
B) Be
C) Mg
D) Ca
44. Phenol reacts with CH3COCl to give:
A) Acid
B) Ester
C) Alcohol
D) Aldehyde
45. Which of the following oxides is must acidic oxide?
A) Al2O3
B) Cl2O5
C) Na2O3
D) CaO
46. The total number of transitions element is:
A) 58
B) 48
C) 39
D) 25
47. The oxidation state of carbon in C3O4 is:
A) +4
B) -4
C) +3
D) +2
48. Diethyl ether and n-butanol are:
A) Position isomers
B) Functional group isomers
C) Chain isomers
D) Transforms
49. The shape of CO2 molecule is similar to:
A) H2S
B) SO2
C) SnCl2
D) BeF2
50. Which of the following metal does NOT liberate hydrogen on reaction with acids?
A) Mg
B) Pt
C) Zn
D) Ca
51. The sugar unit in DNA molecule is:
A) Ribose
B) 2-deoxyribose
C) 3-deoxyribose
D) 2-deoxypentose
52. Order of reactivity of halogens towards alkenes is:
A) F2/I2?Br2>Cl2
B) F2>Br2>cL2>I2
C) F2>Cl2>Br2>I2
D) F2>Cl2>I2>Br2
53. Stronger the oxidizing agent stronger is the:
A) Sand of soil
B) Oxidization potential
C) Reduction potential
D) Rados potential
54. IUPAC name of Divinyl acetylene is:
A) 1,5-hexadiyne -3-ene
B) 1,5-hexadiane-3-yne
C) 3-Herone-1-5-dyne
D) 3-Heryne-1,5-diene
55. Carbonyl group undergoes:
A) Electrophilis addition reaction
B) Neulophilic addition reaction
C) Electrophilic substitution reaction
D) Nucleophilic substitution reaction
56. Α-hydrolysis carboxylic acid and nitrogen and produced when amine react with
A) HNO3
B) HNO2
C) NH3
D) N2O5
57. The pka valve of CH3COOH is 4.74. The PH of equimolar solution of acetic acid solutions acetate is:
A) 12.0
B) 7.1
C) 4.72
D) 4.74
58. Which is the paramagnetic oxide of chlorine?
A) Cl2O7
B) Cl2O6
C) ClO2
D) ClO4
59. Acetone can be obtained by ozonolysis of:
A) 2-butyne
B) 2-butene
C) 1-butyne
D) 1-butene
60. Which of the following molecule has zero dipole moment?
A) PCl3
B) BF3
C) NH3
D) H2O
Answers will be updated soon.
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