Home/MDCAT/MDCAT Fundamental Principles of Organic Chemistry Test Online

MDCAT Fundamental Principles of Organic Chemistry Test Online

Malik TahirLast Updated: May 24, 2025

Chemistry Fundamental Principles of Organic Chemistry MCQS Online Test

MDCAT Chemistry Fundamental Principles of Organic Chemistry Chapter Online Test

Total Questions:	119
Time Allowed:	60 Minutes
Total Marks:	119
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	MDCAT Entry Test Chemistry Online Test Interview Questions about Chemisttry All Universities Entrance Test Recruitments Tests

MDCAT Chemistry Fundamental Principles of Organic Chemistry Test

Please wait...

Page 1 of 5

Chemistry

1. Identify the compound which has a bond angle of 109.5°?

Ethyne

Ethere

Benzene

Methane

2. I-Chloropropane has two isomers. It is an example of

Chain isomerism

Functional group isomerism

Metamerism

Position isomerism

3. The use of tetra ethyl lead in petrol as an efficient antiknock agent is being discouraged. Which reason is correct?

Pb is difficult to obtain in bulk qualities

It damages the engine

The combustion product, lead causes air pollution

It is costly

4. The number of isomers of C₆H₁₄ is:

5. Which of the following compounds contains a truple bond?

Alkane

Alkene

Benzene

Alkyne

6. In benzene carbon – carbon bonds are

Single covalent

Double covalent

Of the order 1.5

3 single and 3 double

7. Linear shape is shown by which compound

C₂H₂Cl₂

C₂H₆

C₂Cl₂

CHCl₃

8. An isomer of ethanol is:

Diethyl ether

Dimethyl ether

Methanol

Acetone

9. Which one has zero octane number?

iso – octane

n – Hexane

n – Heptane

decane

10. The open chain organic compounds are called

Both A and B

Linear compounds

Aromatic

Aliphatic

11. Ether shows the phenomenon of

Metamerism

Cis – trass isomerism

Position isomerism

Chain isomerism

12. The F-S-F bond angles in SF₆ are ___________.

90° and 180°

45° and 90°

90° and 120°

120° only

13. Coal heated in the absence of air of about 500-1000⁰C is converted to

Coal gas

Coal tar

Coke

All above

14. What kind of hybrid orbitals are utilized by the carbon atom in CF₄ molecules?

sp³

sp²

sp³ d

15. Peat before conversion to bituminous coal is converted to

Anthracite

Asphalt

Lignite

None

16. Compounds of carbon and hydrogen in which the tetra valency of carbon is fully satisfied are called:

Saturated

Un-saturated

Para-magnetic

Magnetic

17. Hydrocarbons contain

C, H, O and N only

C, H, and O only

C and S only

C and H only

18. Acetylene had a characteristic ethereal smell resembling that of

Vinegar

Garlic

Ginger

Onion

19. Replacement of hydrogen atom by – SO₃H group in benzene is called

Alkylation

Acylation

Sulphonation

Nitration

20. Identify the hydrocarbon formed, when ethyl bromide reacts with, alcoholic KOH at 100°

Ethene

Ethyne

Ethane

Methane

21. The compounds containing –SH as a functional group are called

Sulphides

Hydrogen sulphides

Thiols

Alcohols

22. Cracking is a process by which higher hydrocarbon are broken down into low boiling hydrocarbon. Which one is not generally a procedure for cracking:

Stem cracking

Thermal cracking

Normal cracking

Catalytic cracking

23. No lead gasoline with hygher octane number can be obtained by

Hydrogenation

Reforming process

Cracking

Oxidation

24. Isomerism which is only found in alkanes?

Position isomerism

Metamerism

cis – trans isomerism

Functional group isomerism

25. Which of the following possess linear geometry

Alkyne

Benzene

Alkene

Alkane

Page 2 of 5

26. In which molecule carbon atom is sp² hybridized

None of these

C₂H₂

C₂H₄

CH₄

27. Replacement of hydrogen atom by – SO₃H group in benzene is called

Nitration

Acylation

Sulphonation

Alkylation

28. Metallic ethynides are formed by the reaction of ________ with ammonical solver nitrate or ammonical cuprous chloride

Ethane

Acetylene

Benzene

Ethanoic acid

29. Which of the following compounds will exhibit cis-trans isomerism?

2-butyne

2-butanol

2-butene

Butanal

30. Coal is obtained from dead remains of

Animals

Both a and b

Plants

None

31. On passing ethane into concentrated suphuric acid the intermediate compound formed on hydrolysis with boiling water gives.

Ethyl alcohol

Ethyl hydrogen sulphate

Methyl alcohol

Methyl hydrogen sulphate

32. On sp3 hybridization

One s and 3 p-orbitals are involved

All p-orbitals are involved

One p-orbital is involved

Four p-orbitals are involved

33. Which polyatomic ion is incorrectly matched with its ionic geometry?

ClO₂ - angular

NH₄⁺ - tetrahedral

PH₄⁺ - tetrahedral

SiCl₆²¯ -trigonal bipyramidal

34. A π (pi) bond is the result of the

Overlap of two p orbitals along their axes

Overlap of two s orbitals

Overlap of an s and a p orbital

Sidewise overlap of two parallel p orbitals

35. Straight chain hydrocarbons are

None of these

In which each carbon is attached at least with three other carbon atoms

In which atoms of C are in a series

Not in a series

36. The essential component of organic compound is

37. Vital force theory was rejected by

Lavoisier

Kolbe

Berzelius

Wholer

38. Which of the following gases is used for illuminating purpose?

Ethane

Butane

Methane

Propane

39. Reactions of 2 – Butene with HBr gives only one products because

The molecule is symmetrical around C – C

The molecule is asymmetrical around C – C bond

It is more stable

It is less stable

40. Polythene is a polymer of

Acetone

Propylene

Ethane

Ethene

41. The carbocyclic compounds are those which have

May be other atoms

All atoms are SP³ -hybridized

All atoms are SP² -hybridized

All atoms in the ring are carbon

42. There is no direct test for the detection of one of the following is an organic compound. Which is it?

43. The compounds which have any atom other than carbon atom, in rings are called as

Monocyclic

None of these

Heterocyclic

Homocyclic

44. The process in which orbitals of different energies and shapes mix up with each other to give equivalent orbitals is called

Isomerisation

Polymerization

Carbonization

Hybridization

45. The four bonds of carbon in methane are directed towards the corners of

Pentagon

Cube

Hexagon

Tetrahedron

46. Which statement is true regarding reactivity?

Alkenes do not undergo addition reactions

Alkene decolourize bromine solution and Baeyer’s reagents but alkynes do not

Towards the addition reaction alkenes are more reactive than alkynes

Double and is stronger than single bond hence alkenes are less reactive than alkanes

47. Unsaturated hydrocarbons containing a double bond are called

Olefins

Alkanes

Paraffin

Acetylene

48. Toulene is a compound in which benzene has a substituent

-CH₃ group

-CHO group

- OH group

+NH₂ group

49. What hybridization is predicted for sulfur in the HSO₃¯ ion?

sp²

sp³

sp³d

50. The functional group isomer of dimethyl –ether is

Ethyl alcohol

Diethyl pether

Prophyl alcohol

Butyl alcohol

Page 3 of 5

51. Which molecule is nonpolar?

BeH₂

H₂Se

PF₃

CHCl₃

52. The major portion of natural oil is

Ethane

Methane

Propane

Butane

53. Normal by product of cracking is

Benzene

All of these

Ethane

Butane

54. The components of petroleum can be separated due to

Having different B.P.

Having different M.P.

Having different chemical properties

Having different physical states

55. The state of hybridization carbon in ethane is

SP²

None

SP³

56. Hybridization explain the ________ of orbitals

Type of Bonding

None of these

Shape and Type of bonding

Shapes

57. Which of the following is complex?

C₆H₁₂O₆

CH₄

(C₆H₁₀O₅)n

CaSO₄. 0.5H₂O

58. Petroleum is mainly a mixture of

Compounds of S

Phenols

Saturated hydrocarbons

Unsaturated hydrocarbon

59. The self-linking of carbon atoms is called

Isomerism

Chelation

None of these

Catenation

60. Organic compounds resemble to those of inorganic compounds having same

Isomerism

Ionic properties

Chemical forces

Carbon forming long chain or rings

61. Which one of the following contains 50% carbon?

Antheracite

Peat

Wood

Coal tar

62. Choose the molecule that is incorrectly matched with the electronic geometry about the central atom.

CF₄ - tetrahedral

H₂O – tetrahedral

NH₃ - tetrahedral

PF₃ - pyramidal

63. The characteristic reactions of alkanes are

Substitution reactions

Polymerization

Addition reactions

Condensation reactions

64. Ethyl alcohol on ____________ gives ethane

Dehydration

Dehydrogenation

Hydration

Oxidation

65. Furan is a give membered ring in which one position is occupied by

None

H-N-

H-O-

-O-

66. Pi bonds are produced by overlapping of

Atomic orbital and hybrid orbital

Hybrid orbitals

Hybrid and un hybrid orbitals

Un-hybrid orbitals

67. Bromoethane can be converted to ethane by

Reaction with aq KOH

Reaction with alcoholic KOH

Oxidation

Reduction

68. Which of the following in not an organic compound?

Urea

Ammonium cyanate

Glucose

Methane

69. Which molecule has a linear arrangement of all component atoms?

H₂O

NH₃

CH₄

CO₂

70. The bond angle between hydrogen atoms and carbon in alkane is

104.5°

120.5°

107.5°

109.5°

71. The process in which one s and two p orbitals mix up with each other is called

Dsp²-hybridization

Sp-hybridization

Sp³-hybridization

Sp²-hybridization

72. Identify the4 compound formed, when ethylene combines with water in the presences of 10% sulphuric acid and HgSO₄ as catalyst

Methanol

Ethanol

Glycol

Carbinol

73. Which of the following species is planar?

NH₃

NO₃¯

H₃O⁺

SO₃²¯

74. Alkanes cannot show cis-trans isomerism

The bond angle is 109.5°

0¯ bond is stronger than A-bond

0¯ bond required less energy to be rotated

Alkanes possess three groups attached to each carbon

75. The components of petroleum can be separated due to

Having different chemical properties

Having different M.P.

Having different B.P.

Having different physical states

Page 4 of 5

76. Wholer prepared urea from

Uric acid

NH₃

NH₄CNO

Ammonia

77. Methane is produced when aluminum carbide is treated with

Alcohol

Water

Acid

Base

78. The method of converting high boiling hydrocarbons into low boiling hydrocarbons is called

Cracking

Polymerization

Condensation

Isomerization

79. The octane number is 100 for

Neo-Pentane

n-hexane

Isooctane

Neo-octane

80. C₄H₈ can show isomerism

Structural

Functional group

Position

Geometric

81. An alkene forms isomers if the number of carbon atoms is at least

82. The isomers which can be inter converted through rotation around a single bond are:

Conformers

Enantiomers

Diastereomers

Positional isomers

83. The perchloric acid molecule contains:

8 lone pairs, 2 π bonds, and 7 σ bonds.

2 lone pairs, 3 π bonds, and 4 σ bonds.

9 lone pairs, no π bonds, and 6 σ bonds.

13 lone pairs, 1 π bond, and 4 σ bonds

84. Which is the solid form of petroleum?

Naptha

Wood

Peat

Asphalt

85. When a carbon atom forms single bonds with other carbon atoms, these hybrid orbitals overlap with the orbitals of hydrogen to form four bonds which are

Three sigma and one Pi

One sigma and three Pi

Sigma

Two sigma and two Pi

86. Compounds have same empirical formula but different molecular formula must have

Different molecular weights

The same vapour density

The same viscosity

Same molecular weights

87. A triple bond contains _____ sigma bond(s) and _________ pi bond(s).

0, 3

2, 1

3, 0

1, 2

88. In Pakistan, 80% available coal is used for which purpose

In glass industry

Domestic use

Bake bricks

Sugar industry

89. The structure of benzene is

Pyramidal

Hexagonal

Square planer

Tetrahedral

90. The rotation of two carbon atoms joined by double bond would happened only if

None of these

Pi bond is broken

Sigma bond is broken

Both bonds are broken

91. The next homologue of C₁₀H₂₂ will be

C₁₁H₂₄

C₉H₂₀

C₁₃H₂₈

C₁₂H₂₆

92. On passing ethane into concentrated sulphuric acid, the intermediate compound formed on hydrolysis with boiling water gives:

Methyl hydrogen sulphate

Methyl alcohol

Ethyl hydrogen sulphate

Ethyl alcohol

93. Either show the phenomenon of

Functional group isomerism

Position isomerism

Metamerism

Cis-trans isomerism

94. C₂H₂Cl₂ can show isomerism

Position

Functional group

Geometric

Metamerism

95. Which is a mixture of low boiling hydrocarbon

Petroleum

Wood

Graphite

Natural gas

96. When H₂SO₄ is heated with excess of chance of at 140°C. The major product is

Ketone

Ether

Alcohol

Ethene

97. Which of the following pairs of molecules and their molecular geometries in WRONG?

BF₃ - trigonal planar

AsF₅ - trigonal bipyramidal

H₂O - bent

NF₃ - trigonal planar

98. In catalytic cracking, the typical catalyst used is

Al₂O₃

SiO₂

SiO₂+Al₂O₃

99. Which one of the following is a heterocyclic compound?

Phenol

Anthracene

Pysidence

Cyclohexanol

100. Geometry of molecule will be pyramidal if the outer post shell of the central atom has

3 lone pair 1 bond pair

2 band pair 2 lone pair

3 band pair one lone pair

1 band pair 3 lone pair

Page 5 of 5

101. Choose the species that is incorrectly matched with the electronic geometry about the central atom:

ClO₄¯ - tetrahedral

SO₃²¯ - pyramidal

ClO₃¯-tetrahedral

NO₂¯ - trigonal palnar

102. Rates of organic reactions are

None-reactive

Slow

Very fast

Fast

103. In C₂H₂ carbon-carbon bond angle is

90°

120°

180°

109.5°

104. Which of the following four molecules are polar: PH₃ OF₂ HF SO₃?

None of these

All except SO₃

Only HF

Only HF and OF₂

105. The active part in a molecule is called:

Chemical bonding

Ionic complex

Functional group

Homologous series

106. Fossil fuels are sources of organic compounds. Which one is not fossil fuel?

Wood

Natural gas

Coal

Petroleum

107. Which of the following has linear shape?

SP³

SP²

None of these

108. Geometry of simple molecule having sp3 hybrid orbital is

Triangular

Square planner

Tetrahedral

Linear

109. The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

Functional isomers

Metamers

Position isomers

Chain isomers

110. Which of the following contains single bonds?

Alkane

Benzene

Alkyne

Alkene

111. Which is the character of organic compounds

They possess particular properties

Rates of reactions are very fast

All

Mostly ionic in character

112. A neutral molecule having the general formula AB₃ has two unshared pair of electrons on A. What is the hybridization of A?

sp³d

sp²

sp³

113. Organic compounds are soluble in all except

Petroleum

Ether

Water

Benzene

114. Acetylene has a characteristic ethereal smell resembling that of:

Vinegar

Garlic

Onion

Ginger

115. When a compound X is passed through a dilute alkaline solution of KMnO₄ the pink colour of solution is discharged. The compound X is possibly

Ethane

Methane

Ethene

Benzene

116. A molecular orbital is formed by the linear combination of two atomic orbitals. A molecular orbital must accommodate __________ electrons.

117. The demand of gasoline can be fulfilled by

Reforming

Vapourization

Crystallization

Cracking

118. Which is not the characteristic property of organic compounds?

Organic compounds are water soluble

They form long chain compounds

Organic compound chain compounds

They exist in homologous series

119. Which one is not an organic compound

Cyanides

None of these

Carbohydrates

Fats

You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.

MDCAT Physics Vactors And Equilibrium Online Test
MDCAT Fundamental Concepts of Chemistry Test Online MCQs
MDCAT Biology Inheritance Test Online MCQs
MDCAT Biology Acellular life Test Online
MDCAT Biology Variety of Life Test Online MCQs
MDCAT Biology Fields of Specialization Online Test MCQS
MDCAT Biology Kingdom of Protista Online Test MCQS
MDCAT Biology Fungi Online Test MCQS
MDCAT Biology Kingdom Plantae Test Online MCQS
MDCAT Biology Gaseous Exchange Online Test MCQS

Malik TahirLast Updated: May 24, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

10 Comments

Misbah Komal says:

March 14, 2023 at 1:10 am

I learnt a good knowledge from it and feel proud

Misbah Komal says:

March 14, 2023 at 1:09 am

I learnt a good knowledge from it

Khadeja says:

February 25, 2023 at 11:05 pm

[email protected]

Mian rouf Sajjad says:

September 28, 2021 at 5:59 pm

I got 100% marks!!

Mian rouf Sajjad says:

September 28, 2021 at 5:58 pm

I got ?% marks!!

Ariba jaffar says:

June 13, 2021 at 1:36 pm

It’s good to solve these McQ’s but there must be some more conceptual and technical points in them like there a lot of conceptual McQ’s about isomerism..

Haniya Khan says:

September 15, 2017 at 10:47 pm

yes 100%

1. Injeel Khan says:
  
  May 12, 2022 at 10:09 pm
  
  What do you mean 100%
  
2. Naeem Asghar says:
  
  May 26, 2022 at 10:08 am
  
  100% ho hi nahi skta even ap k saary bhi theek hn mien ny 2 baar kia hai mery 100% theek thy but is website k alogarithms hi khuch aisy hien k ap ka aik koi lazmi ghlt krien gy.
  
nimra ishfaq says:

August 21, 2016 at 2:57 pm

yes! 100%

MDCAT Fundamental Principles of Organic Chemistry Test Online

Chemistry Fundamental Principles of Organic Chemistry MCQS Online Test

MDCAT Chemistry Fundamental Principles of Organic Chemistry Chapter Online Test

MDCAT Chemistry Fundamental Principles of Organic Chemistry Test

Chemistry

You Might Also Like

Malik Tahir

10 Comments

Leave a Reply Cancel reply

Chemistry Fundamental Principles of Organic Chemistry MCQS Online Test

MDCAT Chemistry Fundamental Principles of Organic Chemistry Chapter Online Test

MDCAT Chemistry Fundamental Principles of Organic Chemistry Test

Chemistry

You Might Also Like

Malik Tahir

Your Related

MDCAT Biology Support and Movements Test Online

MDCAT Biology Biological Molecules Online Test

KMU Peshawar Entry Test 2025 Registration Forms Dates Time Schedule

MDCAT Chemistry Electrochemistry Test Online

MDCAT English Spotting Errors Online Test 11

MDCAT English Spotting Errors Online Test 5

10 Comments

Leave a Reply Cancel reply