NTS Chemistry Mcqs with Answers

Here you can practice all the latest NTS Chemistry Mcqs with Answers for free. We have provided the best content for the preparation of any type of NTS Chemistry Test, we recommend all of you to take all the tests in order to pass the tests. All the candidates are advised to attempt all the tests till the end to get high marks in the exam. NTS Chemistry Online Mcqs are being added below. It is mandatory to take the NTS Test to get admission to Colleges and Universities which are recognized by the HEC.

Free Online NTS Chemistry Preparation MCQs

NTS Online Tests are for preparing all the questions related to NTS Chemistry Mcqs with Answers. we have tests related to different topics that will help the students to prepare well for the NTS Chemistry TestNTS is one of the organizations in Pakistan that offers two types of tests, the Graduate Assessment Test and the National Chemistry Test. NTS conducts subject-wise tests in which Chemistry Test is also an important subject. 

NTS Chemistry MCQs With Answers

1. The branch of chemistry which deals with radio activity , nuclear processes and properties is called
(a) Industrial chemistry
(b) Bio chemistry
(c) Nuclear chemistry
(d) Analytical chemistry

Answer
Option C

2. Silicon forms ………… per cent of earth crust
(a) 8 %
(b) 47%
(c) 28%
(d) 78%

Answer
Option C

3. Elements are represented by …..
(a) Formulas
(b) Signs
(c) Symbols
(d) Abbreviation

Answer
Option C

4. The symbol of thiosulphate is …………
(a) SO4-2
(b) SO3-2
(c) S2O3-2
(d) SO4-3

Answer
Option C

5. The chemical formula of lime stone is
(a) CaO
(b) CaCO3
(c) C12H22O11
(d) SiO2

Answer
Option B

6. Atomic mass unit is abbreviated as
(a) AMU
(b) A¬mu
(c) aMu
(d) Amu

Answer
Option D

7. The empirical formula of benzene is
(a) HC
(b) CO
(c) CH
(d) OH

Answer
Option C

8. Atom having positive charge is called
(a) Canion
(b) Anion
(c) Cation
(d) Ion

Answer
Option C

9. When a molecule losses or gains an electron it forms a ………….
(a) Anion
(b) Cation
(c) Ion
(d) Moleculer ion

Answer
Option D

10. Avagodro’s number is
(a) 6.62* 1023
(b) 6.00*1023
(c) 6.02*1023
(d) 6.02*1024

Answer
Option C

11. Proton was discovered by
(a) Goldstein
(b) Thomas
(c) Daniel
(d) Emil

Answer
Option A

12. Except electrons all other fundamental particles that lie within the nucleus
(a) Nucleolus
(b) Neutrons
(c) Nucleons
(d) Protons

Answer
Option C

13. Shell N has sub shells
(a) One
(b) Two
(c) Three
(d) Four

Answer
Option D

14. Beryllium has electronic configuration
(a) 1s1
(b) 1s2,2s2,2p1
(c) 1s2,2s1
(d) 2s2,2p4

Answer
Option C

15. The hydrogen third isotop is
(a) Tritium
(b) Protium
(c) Deuterium
(d) Alluminium

Answer
Option A

16. To determine the age of carbon containing products the radio activity of ……….. isotop is measured
(a) C12
(b) C13
(c) C14
(d) C15

Answer
Option C

17. Nutron was discovered in ……………
(a) 1931
(b) 1932
(c) 1933
(d) 1934

Answer
Option B

18. Relationship between atomic masses of several groups of three elements
(a) Tetrad
(b) Triad
(c) Bivalent
(d) Pentavalent

Answer
Option B

19. The electronic configuration of boron family is
(a) ns1
(b) ns2
(c) ns2 np1
(d) ns3 np4

Answer
Option C

20. Br35 has electro negativity
(a) 4.0
(b) 3.2
(c) 3.0
(d) 2.7

Answer
Option C

21. Attaining eight electrons in the valence shell is called
(a) Triad rule
(b) Tetrad rule
(c) Duplet rule
(d) Octet rule

Answer
Option D

22. The bond form due to mutual sharing of electrons
(a) Ionic bond
(b) Covalent bond
(c) Bond
(d) Electronic bond

Answer
Option B

23. The energy required to break the bond between hydrogen and chlorine in hydrogen chloride is
(a) 410kJ
(b) 420kJ
(c) 430kJ
(d) 440kJ

Answer
Option C

24. One pascal is equal to
(a) 1Nm-2
(b) N-2
(c) NM-2
(d) Nm-3

Answer
Option A

25. All inter molecular forces collectively called
(a) Dipole-dipole
(b) Hydrogen bonding
(c) Van der waals
(d) Ionic bonding

Answer
Option C

26. ………… configuration is stable one
(a) Metallic
(b) Noble gas
(c) Ionic
(d) Electronic

Answer
Option B

27. Identify the compound which is not soluble in water
(a) NaCl
(b) C6H6
(c) KBr
(d) MgCl2

Answer
Option B

28. The product of pressure and volume of a fixed mass of gas is constant at a constant temperature
(a) Pascal’s law
(b) Newton’s law
(c) Boyle’s law
(d) Charles’s law

Answer
Option C

29. Diethyl ether has freezing point
(a) -115C
(b) -116C
(c) -113C
(d) -114C

Answer
Option B

30. The existence of an element in more than one form in same physical state
(a) Electro plating
(b) Galvanization
(c) Allotropy
(d) Sympatery

Answer
Option C

31. Solids are classified as crystalline and
(a) Metals
(b) Amorphous
(c) Allotropic
(d) Vapours

Answer
Option B

32. Metal alloys like ( brass , bronze ) has both elements …………
(a) Solids
(b) Liquids
(c) Gas
(d) Vapors

Answer
Option A

33. Molarity is represented by …….
(a) M
(b) m
(c) Mol
(d) Mole

Answer
Option A

34. CuSo4 stands for
(a) Calcium sulphate
(b) Carbon sulphate
(c) Crommium sulphate
(d) Copper sulphate

Answer
Option D

35. Particles of colloids are big enough to scatter the beam of light called
(a) Tyndall effect
(b) Green house effect
(c) Vander wall effect
(d) Charles effect

Answer
Option A

36. Loss of electron is called
(a) Oxidation
(b) Reduction
(c) respiration
(d) Redox reaction

Answer
Option A

37. In neutral molecule the algebric sum of the oxidation number of all elements is
(a) 1.0
(b) 0
(c) 0.01
(d) 0.001

Answer
Option B

38. Substances which can conduct electricity in their aqueous solutions called
(a) Non electrolytes
(b) Electrolytes
(c) Strong electrolytes
(d) Week electrolytes

Answer
Option B

39. A galvanic cell consists of ………… cells
(a) Two
(b) Three
(c) One
(d) Four

Answer
Option A

40. When NaCl disassociates, Na has ……….. charge
(a) Positive
(b) Negative
(c) Neutral
(d) Two

Answer
Option A

41. 2Cl-(l) gives us on oxidation
(a) Cl2(g) + 2e-
(b) 2Cl2(g) + 2e+
(c) Cl3(g) + 2e-
(d) 2Cl2(g) + 3e-

Answer
Option A

42. Depositing one metal over other called
(a) Allotropy
(b) Distillation
(c) Sublimation
(d) Electroplating

Answer
Option D

43. ‘’ K ‘’ has ………… atom number
(a) 18
(b) 19
(c) 22
(d) 11

Answer
Option B

44. Silver is lustrous metal
(a) Grey
(b) White
(c) Golden
(d) Brown

Answer
Option B

45. Gold is a yellow soft ………….
(a) Alloy
(b) Solid
(c) Metal
(d) Crystal

Answer
Option C

46. The ionic size of calcium is
(a) 186,102 pm
(b) 160,72 pm
(c) 197,99 pm
(d) 170,81 pm

Answer
Option C

47. The property of metals to lose their valance electrons called
(a) Electro negativity
(b) Electro positivity
(c) Allotropy
(d) Ionization

Answer
Option B

48. The element in a group 2 are called
(a) Alkali
(b) Metal
(c) Alkaline earth
(d) Alloy

Answer
Option C

49. Alkali metal do not react with ………… directly
(a) Hydrogen
(b) Carbon
(c) calcium
(d)Nitrogen

Answer
Option B

50. The ionization energy of magnesium is
(a)496 Kj/mol
(b) 738, 1450 Kj/mol
(c) 590,1145 Kj/mol
(d) 650,839 Kj/mol

Answer
Option B

51. When an electron is brought from infinite distance close to the nucleus of the atom, the energy of Electron-nucleus system?
(a) increases to a smaller negative value
(b) decreases to a greater negative value
(c) decreases to a smaller positive value
(d) increases to a greater positive value

Answer
Option B

52. The probability of finding the electron in the nucleus is:
(a) 100% due to forces of attraction
(b) finite for all orbitals
(c) Zero for all orbitals
(d) Zero for some orbitals and finite for others

Answer
Option C

53. When Zn metal is kept in CuSO4solution, copper is precipitated and ZnSO4is formed because:
(a) Atomic number of Zinc is smaller than copper
(b) Atomic number of Zinc is larger than copper
(c) Standard reduction potential of Zinc is more than that of copper
(d) Standard reduction potential of Zinc is less than that of copper

Answer
Option D

54. Electrolytes when dissolved in water, dissociate into their constituent ions, the degree of
dissociation of an electrolyte increases with the:
(a) Presence of a substance yielding common ion
(b) Decreasing temperature
(c) Decreasing concentration of electrolyte
(d) Increasing concentration of electrolyte

Answer
Option C

55. There is a large positive entropy change for an exothermic reaction. It means that the reaction
will be:
(a) possible at high temperatures only
(b) impossible at all temperatures
(c) possible at low temperatures only
(d) possible at all temperatures

Answer
Option C

56. W
hich of the following statement is false?
(a) the temperature of the system will fall if an exothermic reaction is isolated from its
surroundings
(b) Energy is absorbed when one compound is converted into another with higher heat content
(c) the temperature of the system is likely to fall if heat is absorbed during the course of a
reaction
(d) None of these

Answer
Option C

57. pH + pOH of a solution is:
(a) 7
(b) Zero
(c) 14
(d) -14

Answer
Option C

58. The compound that is not Lewis acid:
(a) BF3
(b) BaCl2
(c) SnCl4
(d) AlCl3

Answer
Option B

59. Ore of Aluminium:
(a) Calamine
(b) Dolomite
(c) Bauxite
(d) Limestone

Answer
Option C

60. Oxidation number of S in sulphuric acid:
(a) Four
(b) Six
(c) Two
(d) Eight

Answer
Option B

61. d-block elements form coordination compounds because of:
(a) Small Cationic size
(b) Large ionic Charge
(c) Unfilled d-orbitals
(d) Filled d-orbitals

Answer
Option C

62. Brass is an alloy of:
(a) Cu and Zn
(b) Cu, Ni, Zn
(c) Cu and Ni
(d) Cu, Al, Zn

Answer
Option A

63. Urea is a high quality nitrogenous fertilizer with:
(a) 76% nitrogen
(b) 46% nitrogen
(c) 66% nitrogen
(d) 26% nitrogen

Answer
Option B

64. Diamond is:
(a) Good conductor of electricity
(b) Bad conductor of electricity
(c) Bad conductor on heating
(d) Good conductor on heating

Answer
Option B

65. Carbon monoxide is poisonous gas because it:
(a) replaces oxygen from lungs
(b) forms carboxy haemoglobin
(c) Forms carbon dioxide with oxygen
(d) has a sweet smell

Answer
Option B

66. Rust is:
(a) FeO + Fe(OH)2
(b) Fe2O3 + Fe(OH)2
(c) Fe2O3
(d) Fe2O3 + Fe(OH)3

Answer
Option D

67. Calcium Carbide reacts with water to give:
(a) Methane
(b) Ethylene
(c) Acetylene
(d) Ethane

Answer
Option C

68. Which of the following substituent deactivates benzene ring and is o, p-directing?
(a) __ NH2
(b) __ Cl
(c) __ OCH3
(d) __ OH

Answer
Option B

69. Which of the following is most readily nitrated?
(a) Toluene
(b) Benzaldehyde
(c) Nitrobenzene
(d) Benzoic Acid

Answer
Option A

70. Ketones can be prepared by reaction of Grignard reagent with:
(a) Acid Amides
(b) Acid Chloride
(c ) Carboxylic Acid
(d) Epoxides

Answer
Option B

71. Which of the following statements about the order of reaction is true?
(a) The order of a reaction can only be determined by experiment.
(b) A second order reaction is also bimolecular
(c) The order of reaction must be a positive integer
(d) The order of reaction increases with increasing temperature.

Answer
Option C

72. Polysaccharides yield many monosaccharides on:
(a) Hydration
(b) Oxidation
(c) Reduction
(d) Hydrolysis

Answer
Option D

73. Which of the following is not aromatic?
(a) Benzene
(b) cyclooctatetraene
(c) Pyridine
(d) Phenol

Answer
Option B

74. Which of the following is most basic?
(a) H2O
(b) NH3
(c) CH3NH2
(d) CH3OH

Answer
Option C

75. Which of the following has lowest pH?
(a) CH3COOH
(b) CF3COOH
(c) ClCH2COOH
(d) Cl3C COOH

Answer
Option B

76. The equilibrium of two readily interconvertible isomers is called:
(a) Stereoisomerism
(b) Metamerism
(c) Tautomerism
(d) Polymorphism

Answer
Option C

77. Which of the following gives a tertiary alcohol when treated with Grignard reagent:
(a) HCHO
(b) CH3CHO
(c) C3H5CHO
(d) CH3COCH3

Answer
Option D

78. Which of the following tests is not used to identify aldehydes?
(a) Tollen’s test
(b) Benedict solution test
(c) Fehling solution test
(d) Ammonia test

Answer
Option D

79. Which is incorrect about alkaloids?
(a) Naturally Occuring
(b) Possess a hetrocyclic ring
(c) Exhibit biological action
(d) acidic in nature

Answer
Option D

80. Which of the followings will not give iodoform test:
(a) Acetone
(b) Ethylacohol
(c) Benzaldehyde
(d) Acetaldehyde

Answer
Option B

81. The reaction of aniline with bromine water gives:
(a) o-bromoaniline
(b) p-bromoaniline
(c) 2,4-dibromoaniline
(d) 2,4,6-tribromoaniline

Answer
Option B

82. The reaction of tripalmitin, with sodium hydroxide is called:
(a) Hydrolysis
(b) Saponification
(c) Esterification
(d) Combustion

Answer
Option B

83. Which one is not Petrochemical?
(a) Napthalene
(b) Mineral Oil
(c) Wax
(d) Table Salt

Answer
Option D

84. Chemical adsorption:
(a) is exothermic
(b) is irreversible
(c) takes place at high temp.
(d) All of these

Answer
Option D

85. The most commonly used absorbent for chromatographic separation of organic compound is:
(a) Activated charcoal
(b) Fuller’s Earth
(c) Alumina
(d) Silica gel

Answer
Option B

86. Grignard reagent is:
(a) Organo Zinc halide
(b) Organo cadmium bromide
(c) n-Butyl Lithium
(d) Organo Magnesium halide

Answer
Option D

87. The antifreeze compound ethylene glycol has the formula:
(a) C2H5OH
(b) CH3OH
(c) C2H4(OH)2
(d) C3H5(OH)3

Answer
Option C

88. Distillation is the best method for separating the two substances in which of the following:
(a) Water and salt dissolved
(b) water and a substance which does not dissolve in it
(c) Two liquids that have different boiling points
(d) Two solids that have different melting points.

Answer
Option C

89. Which functional group is present in polyester shirt?
(a) Lactam
(b) Acid Chloride
(c) Ether
(d) Ester

Answer
Option D

90. Which one of the following is used as an Antibiotic?
(a) Patulin
(b) Insulin
(c) Soserine
(d) Trypsin

Answer
Option A

91. Which statement is true for Halogen (Halo-group)?
(a) Activating and O, p–directing
(b) Activating and m–directing
(c) Deactivating and O, p–directing
(d) None of these.

Answer
Option C

92. Which one of the following can be synthesized from Aryl Diazonium Salt?
(a) Furfural
(b) Carbylamine
(c) Biphenyl
(d) THF

Answer
Option B

93. The Methyl group in Methyl Magnesium Iodide can act as:
(a) CH3Radical
(b) CH3Carbonium ion
(c) CH3Carbanion
(d) Can react with a base

Answer
Option C

94. Nylon is a copolymer of:
(a) Urea and Formaldehyde
(b) Phenol and Formaldehyde
(c) Hexamethylenediamine and adipic acid
(d) Vinyl Chloride and Vinylalcohol

Answer
Option C

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