NTS GAT Subject (Chemistry) FLP 3 Free Quiz

NTS GAT Subject (Chemistry) – FLP 3

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NTS GAT Subject (Chemistry) – FLP 3 consists of 100 MCQs covering 1 subjects. You have 120 minutes to complete it. Start with the easier questions and manage your time wisely. Good luck!

Chemistry 100 MCQs

1. What is the ideal gas law?

A. PV = nRT B. PV = nRT C. PV = nRT D. PV = nRT

2. What is Avogadro's number?

A. 6.022 × 10²³ B. 6.022 × 10²² C. 6.022 × 10²⁴ D. 6.022 × 10²¹

3. What is the mass of one mole of a substance called?

A. Molecular mass B. Atomic mass C. Molar mass D. Formula mass

4. What is the amount of solute dissolved in a given amount of solvent called?

A. Molarity B. Molality C. Normality D. Concentration

5. What is the lowering of the freezing point of a solution called?

A. Boiling point elevation B. Vapor pressure lowering C. Freezing point depression D. Osmotic pressure

6. What force causes the surface of a liquid to contract?

A. Viscosity B. Surface tension C. Capillary action D. Evaporation

7. What is the general formula for alkenes?

A. C_nH_(2n+2) B. C_nH_(2n-2) C. C_nH_(2n+2) D. C_nH_(2n)

8. What is the functional group of aldehydes and ketones?

A. Hydroxyl B. Carboxyl C. Amino D. Carbonyl

9. What are compounds with the same molecular formula but different structures?

A. Isotopes B. Allotropes C. Isomers D. Polymers

10. What isomers differ in the arrangement of groups around a double bond?

A. Structural B. Geometric C. Optical D. Tautomers

11. What reaction occurs when atoms are added to a double or triple bond?

A. Substitution B. Addition C. Elimination D. Rearrangement

12. What reaction involves the removal of atoms to form a double bond?

A. Substitution B. Addition C. Elimination D. Rearrangement

13. What is the process of joining monomers to form polymers?

A. Addition B. Condensation C. Copolymerization D. Polymerization

14. What is the IUPAC name of CH4?

A. Ethane B. Methane C. Propane D. Butane

15. What reaction introduces an alkyl group onto an aromatic ring?

A. Acylation B. Alkylation C. Nitration D. Sulfonation

16. What are organomagnesium compounds used to form carbon-carbon bonds?

A. Organolithium B. Grignard C. Organozinc D. Organocopper

17. What does a carbonyl compound react with a Grignard reagent to form?

A. Alcohol B. Alkene C. Alkyne D. Ether

18. What does inorganic chemistry study?

A. Compounds without carbon-hydrogen bonds B. Carbon compounds C. Physical properties D. Analysis of substances

19. What organizes elements in the periodic table?

A. Mass B. Volume C. Atomic number D. Density

20. Where are the alkali metals located in the periodic table?

A. Group 2 B. Group 1 C. Group 17 D. Group 18

21. Where are the halogens located in the periodic table?

A. Group 17 B. Group 1 C. Group 2 D. Group 18

22. What happens to electronegativity across a period?

A. Increases B. Decreases C. Stays the same D. Fluctuates

23. What bonding involves the delocalization of electrons?

A. Ionic B. Metallic C. Covalent D. Hydrogen bonding

24. What theory predicts molecular geometry?

A. MO theory B. VB theory C. Crystal field theory D. VSEPR theory

25. What is the molecular geometry of CO2?

A. Linear B. Bent C. Tetrahedral D. Trigonal planar

26. What is the molecular geometry of methane?

A. Linear B. Bent C. Tetrahedral D. Trigonal planar

27. What scale measures the acidity or basicity of a solution?

A. Temperature B. Pressure C. pH D. Concentration

28. What does a weak acid do in water?

A. Strong B. Weak C. Complete D. Irreversible

29. What process is used to extract sodium?

A. Frasch process B. Haber process C. Down process D. Solvay process

30. What does analytical chemistry deal with?

A. Analysis of substances B. Carbon compounds C. Non-carbon compounds D. Physical properties

31. What is a volumetric method for determining concentration?

A. Gravimetric B. Titration C. Spectrophotometric D. Chromatographic

32. What is the point when the amount of titrant is stoichiometrically equal to the analyte?

A. End point B. Inflection point C. Equivalence point D. Half-equivalence point

33. What substance changes color at the end point of a titration?

A. Buffer B. Indicator C. Primary standard D. Secondary standard

34. What law relates absorbance to concentration?

A. A = εc B. A = bc C. A = εb D. A = εbc

35. What technique separates components based on distribution between two phases?

A. Spectroscopy B. Chromatography C. Titration D. Gravimetry

36. What chromatography separates volatile compounds?

A. TLC B. Paper chromatography C. Gas chromatography D. HPLC

37. What technique measures the mass-to-charge ratio of ions?

A. Spectroscopy B. Mass spectrometry C. Chromatography D. Titration

38. What branch studies electrochemical processes?

A. Electroanalytical B. Spectroscopy C. Chromatography D. Gravimetry

39. What spectroscopy is used for elemental analysis?

A. AAS B. IR C. UV-Vis D. ICP

40. What is the ability of a method to detect small changes in concentration?

A. Selectivity B. Precision C. Sensitivity D. Accuracy

41. What is the First Law of Thermodynamics?

A. Entropy B. Enthalpy C. Conservation of energy D. Gibbs free energy

42. What does the Second Law of Thermodynamics state?

A. Energy conservation B. Enthalpy C. Gibbs free energy D. Entropy increases

43. What is a measure of disorder or randomness?

A. Enthalpy B. Internal energy C. Entropy D. Gibbs free energy

44. What does a zero ΔG indicate?

A. Spontaneous B. Non-spontaneous C. Equilibrium D. Undefined

45. What is the relationship between ΔG, ΔH, and ΔS?

A. ΔG = ΔH + TΔS B. ΔG = ΔH/T + ΔS C. ΔG = ΔH - T/ΔS D. ΔG = ΔH - TΔS

46. What is the enthalpy change when a solute dissolves?

A. Formation B. Combustion C. Solution D. Neutralization

47. What is the energy released when ions are hydrated?

A. Hydration B. Lattice enthalpy C. Bond dissociation D. Solvation

48. What equation relates the equilibrium constant to temperature?

A. Arrhenius B. van't Hoff C. Clausius-Clapeyron D. Gibbs-Helmholtz

49. What equation relates vapor pressure to temperature?

A. Clausius-Clapeyron B. Arrhenius C. van't Hoff D. Gibbs-Helmholtz

50. What happens to entropy when a gas condenses to a liquid?

A. Decreases B. Increases C. Stays the same D. Fluctuates

51. What is the change in Gibbs free energy when one mole of a compound is formed from its elements?

A. Enthalpy B. Entropy C. Gibbs free energy D. Internal energy

52. What is the change in concentration per unit time?

A. Rate constant B. Order C. Reaction rate D. Molecularity

53. What expresses the relationship between rate and concentrations?

A. Integrated rate law B. Arrhenius equation C. Equilibrium constant D. Rate law

54. What is the number of molecules involved in the rate-determining step?

A. Molecularity B. Order C. Rate constant D. Activation energy

55. What is a proportionality constant in the rate law?

A. Rate B. Order C. Rate constant D. Activation energy

56. What is the Arrhenius equation?

A. k = A e^(Ea/RT) B. k = A T e^(-Ea/RT) C. k = A e^(-Ea/T) D. k = A e^(-Ea/RT)

57. What order reaction has a rate independent of concentration?

A. First-order B. Zero-order C. Second-order D. Third-order

58. What order reaction has a rate proportional to the square of concentration?

A. Zero-order B. First-order C. Second-order D. Third-order

59. Is the half-life of a first-order reaction dependent on initial concentration?

A. Dependent B. Independent C. Proportional D. Inversely proportional

60. What is the integrated rate law for a zero-order reaction?

A. ln[A] = -kt + ln[A]0 B. [A] = -kt + [A]0 C. 1/[A] = kt + 1/[A]0 D. [A] = kt + [A]0

61. What are biological catalysts?

A. Inhibitors B. Enzymes C. Substrates D. Products

62. What is a measure of enzyme affinity for its substrate?

A. Vmax B. kcat C. Km D. Turnover number

63. What does electrochemistry deal with?

A. Electricity and chemical reactions B. Energy changes C. Reaction rates D. Spectra

64. What is oxidation?

A. Gain of electrons B. Reduction C. Neutralization D. Loss of electrons

65. What is electrode potential measured under standard conditions?

A. Non-standard B. Equilibrium C. Standard D. Irreversible

66. What is used as a reference electrode?

A. Calomel B. Silver-silver chloride C. Glass D. SHE

67. What is the ability of a solution to conduct electricity?

A. Resistance B. Potential C. Conductivity D. Current

68. What device converts chemical energy into electrical energy?

A. Battery B. Fuel cell C. Capacitor D. Resistor

69. What generates electricity through a chemical reaction between a fuel and an oxidant?

A. Battery B. Capacitor C. Fuel cell D. Resistor

70. What is a type of corrosion?

A. Rusting B. Tarnishing C. Pitting D. Galvanic corrosion

71. What method prevents corrosion by making the metal the cathode?

A. Anodic protection B. Galvanization C. Cathodic protection D. Passivation

72. What ranks elements by their standard electrode potentials?

A. Electrochemical series B. Activity series C. Periodic table D. Reactivity series

73. What ligands bind through two donor atoms?

A. Monodentate B. Polydentate C. Chelates D. Bidentate

74. What ligands bind through multiple donor atoms?

A. Monodentate B. Polydentate C. Bidentate D. Chelates

75. What theory described the structure of coordination compounds?

A. VSEPR B. MO C. Werner's theory D. VB

76. What complex has more unpaired electrons?

A. Low-spin B. Intermediate C. No-spin D. High-spin

77. What effect describes the distortion of octahedral complexes?

A. Chelate effect B. Jahn-Teller effect C. Trans effect D. Spectrochemical series

78. What effect describes the influence of a ligand on substitution opposite to it?

A. Trans effect B. Jahn-Teller effect C. Chelate effect D. Spectrochemical series

79. What type of isomerism in octahedral complexes includes cis and trans?

A. Optical B. Structural C. Ionization D. Geometrical

80. What isomerism occurs when different ions are exchanged between spheres?

A. Ionization B. Geometrical C. Optical D. Structural

81. What are porous materials with metal ions and organic ligands?

A. MOFs B. Zeolites C. Clays D. Carbon nanotubes

82. What does spectroscopy study?

A. Interaction between matter and electromagnetic radiation B. Separation C. Volumetric D. Mass

83. What is the distance between successive peaks of a wave?

A. Frequency B. Amplitude C. Speed D. Wavelength

84. What is the speed of light?

A. 3.00 × 10^8 m/s B. 3.00 × 10^6 m/s C. 3.00 × 10^10 m/s D. 3.00 × 10^12 m/s

85. What spectroscopy measures vibrational transitions?

A. UV B. NMR C. MS D. IR

86. What is the emission of light after excitation?

A. Absorption B. Fluorescence C. Scattering D. Transmission

87. What is the delayed emission of light after excitation?

A. Phosphorescence B. Fluorescence C. Scattering D. Transmission

88. What spectroscopy measures the binding energies of electrons?

A. XRD B. XRF C. XAS D. XPS

89. What spectroscopy measures electrons emitted after X-ray excitation?

A. XPS B. AES C. XRD D. XRF

90. What is the distance light travels through a sample?

A. Concentration B. Path length C. Absorbance D. Transmittance

91. What is the presence of harmful substances in the atmosphere?

A. Water pollution B. Soil pollution C. Noise pollution D. Air pollution

92. What is the contamination of water bodies by harmful substances?

A. Air pollution B. Water pollution C. Soil pollution D. Noise pollution

93. What gases trap heat in the atmosphere?

A. Oxygen B. Nitrogen C. Greenhouse gases D. Noble gases

94. What is a major greenhouse gas?

A. Oxygen B. Nitrogen C. Argon D. Carbon dioxide

95. What is the breakdown of substances by microorganisms?

A. Photodegradation B. Chemical degradation C. Biodegradation D. Physical degradation

96. What chemicals are used to control pests in agriculture?

A. Pesticides B. Herbicides C. Fungicides D. Insecticides

97. What is the movement of nitrogen through the environment?

A. Carbon cycle B. Water cycle C. Nitrogen cycle D. Oxygen cycle

98. What includes collection, treatment, and disposal of waste?

A. Waste management B. Recycling C. Composting D. Incineration

99. What is the burning of waste at high temperatures?

A. Recycling B. Incineration C. Composting D. Waste management

100. What aims to meet current needs without compromising future generations?

A. Sustainable development B. Economic growth C. Industrialization D. Modernization

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