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. The carbocyclic compounds are those which have

All atoms in the ring are carbon

All atoms are SP³ -hybridized

May be other atoms

All atoms are SP² -hybridized

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

Ethene

Ether

Ketone

Alcohol

3. Unsaturated hydrocarbons containing a double bond are called

Alkanes

Acetylene

Paraffin

Olefins

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

1, 2

2, 1

3, 0

0, 3

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

Sulphonation

Acylation

Alkylation

Nitration

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

Butane

Propane

Methane

Ethane

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

Polymerization

Isomerisation

Carbonization

Hybridization

8. The components of petroleum can be separated due to

Having different M.P.

Having different chemical properties

Having different physical states

Having different B.P.

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

None of these

Homocyclic

Heterocyclic

Monocyclic

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

120° only

90° and 120°

90° and 180°

45° and 90°

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

Ginger

Vinegar

Garlic

Onion

12. Peat before conversion to bituminous coal is converted to

Lignite

Asphalt

None

Anthracite

13. Either show the phenomenon of

Functional group isomerism

Cis-trans isomerism

Position isomerism

Metamerism

14. The state of hybridization carbon in ethane is

SP²

None

SP³

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

sp³

sp³d

sp²

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

Methane

Ethere

Ethyne

Benzene

17. Hybridization explain the ________ of orbitals

None of these

Shape and Type of bonding

Shapes

Type of Bonding

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

Alcohols

Thiols

Sulphides

Hydrogen sulphides

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

Methyl hydrogen sulphate

Ethyl alcohol

Ethyl hydrogen sulphate

Methyl alcohol

20. In catalytic cracking, the typical catalyst used is

SiO₂

SiO₂+Al₂O₃

Al₂O₃

21. Bromoethane can be converted to ethane by

Reaction with aq KOH

Reduction

Reaction with alcoholic KOH

Oxidation

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

ClO₃¯-tetrahedral

SO₃²¯ - pyramidal

NO₂¯ - trigonal palnar

ClO₄¯ - tetrahedral

23. Coal is obtained from dead remains of

Both a and b

Animals

None

Plants

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

25. The open chain organic compounds are called

Aliphatic

Aromatic

Both A and B

Linear compounds

Page 2 of 5

26. Which is the solid form of petroleum?

Peat

Naptha

Asphalt

Wood

27. In C₂H₂ carbon-carbon bond angle is

109.5°

120°

90°

180°

28. Alkanes cannot show cis-trans isomerism

0¯ bond is stronger than A-bond

0¯ bond required less energy to be rotated

Alkanes possess three groups attached to each carbon

The bond angle is 109.5°

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

The combustion product, lead causes air pollution

Pb is difficult to obtain in bulk qualities

It is costly

It damages the engine

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

It is more stable

The molecule is asymmetrical around C – C bond

The molecule is symmetrical around C – C

It is less stable

31. Hydrocarbons contain

C, H, and O only

C and H only

C and S only

C, H, O and N only

32. On sp3 hybridization

All p-orbitals are involved

One s and 3 p-orbitals are involved

One p-orbital is involved

Four p-orbitals are involved

33. The major portion of natural oil is

Butane

Methane

Ethane

Propane

34. Linear shape is shown by which compound

C₂Cl₂

C₂H₂Cl₂

C₂H₆

CHCl₃

35. The structure of benzene is

Pyramidal

Square planer

Hexagonal

Tetrahedral

36. Which one has zero octane number?

n – Heptane

iso – octane

n – Hexane

decane

37. Acetylene had a characteristic ethereal smell resembling that of

Ginger

Garlic

Onion

Vinegar

38. Pi bonds are produced by overlapping of

Hybrid and un hybrid orbitals

Atomic orbital and hybrid orbital

Hybrid orbitals

Un-hybrid orbitals

39. C₂H₂Cl₂ can show isomerism

Position

Functional group

Geometric

Metamerism

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

Organic compounds are water soluble

Organic compound chain compounds

They form long chain compounds

They exist in homologous series

41. 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

Two sigma and two Pi

Three sigma and one Pi

Sigma

One sigma and three Pi

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

Benzene

Alkane

Alkyne

Alkene

43. Wholer prepared urea from

Uric acid

Ammonia

NH₄CNO

NH₃

44. Ether shows the phenomenon of

Cis – trass isomerism

Position isomerism

Chain isomerism

Metamerism

45. C₄H₈ can show isomerism

Structural

Geometric

Functional group

Position

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

Overlap of two p orbitals along their axes

Sidewise overlap of two parallel p orbitals

Overlap of two s orbitals

Overlap of an s and a p orbital

47. Which of the following is complex?

(C₆H₁₀O₅)n

CaSO₄. 0.5H₂O

CH₄

C₆H₁₂O₆

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

Magnetic

Un-saturated

Para-magnetic

Saturated

49. Which of the following species is planar?

NH₃

SO₃²¯

NO₃¯

H₃O⁺

50. 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

Methane

Ethene

Ethane

Benzene

Page 3 of 5

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

Ethyl hydrogen sulphate

Ethyl alcohol

Methyl alcohol

Methyl hydrogen sulphate

52. Vital force theory was rejected by

Lavoisier

Kolbe

Wholer

Berzelius

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

Chemical forces

Isomerism

Ionic properties

Carbon forming long chain or rings

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

Only HF

Only HF and OF₂

None of these

All except SO₃

55. 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

Position isomers

Metamers

Chain isomers

56. Which is the character of organic compounds

Mostly ionic in character

They possess particular properties

All

Rates of reactions are very fast

57. Methane is produced when aluminum carbide is treated with

Base

Acid

Water

Alcohol

58. In which molecule carbon atom is sp² hybridized

None of these

CH₄

C₂H₄

C₂H₂

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

2-butanol

Butanal

2-butyne

2-butene

60. The essential component of organic compound is

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

Acylation

Alkylation

Sulphonation

Nitration

62. In benzene carbon – carbon bonds are

Of the order 1.5

3 single and 3 double

Double covalent

Single covalent

63. Geometry of simple molecule having sp3 hybrid orbital is

Tetrahedral

Linear

Square planner

Triangular

64. Which of the following possess linear geometry

Alkane

Alkene

Alkyne

Benzene

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

sp²

sp³

sp³d

66. Organic compounds are soluble in all except

Water

Petroleum

Benzene

Ether

67. Rates of organic reactions are

Fast

Very fast

None-reactive

Slow

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

69. The characteristic reactions of alkanes are

Addition reactions

Substitution reactions

Condensation reactions

Polymerization

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

Domestic use

Sugar industry

Bake bricks

In glass industry

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

Conformers

Diastereomers

Positional isomers

Enantiomers

72. The next homologue of C₁₀H₂₂ will be

C₁₁H₂₄

C₁₃H₂₈

C₉H₂₀

C₁₂H₂₆

73. The octane number is 100 for

Neo-octane

Isooctane

n-hexane

Neo-Pentane

74. Which of the following contains single bonds?

Alkyne

Benzene

Alkane

Alkene

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

Polymerization

Cracking

Isomerization

Condensation

Page 4 of 5

76. The demand of gasoline can be fulfilled by

Cracking

Crystallization

Vapourization

Reforming

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

sp³

sp³ d

sp²

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

The same viscosity

Different molecular weights

The same vapour density

Same molecular weights

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

Thermal cracking

Stem cracking

Catalytic cracking

Normal cracking

80. Which molecule is nonpolar?

CHCl₃

H₂Se

PF₃

BeH₂

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

Sigma bond is broken

Pi bond is broken

None of these

Both bonds are broken

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

-CH₃ group

- OH group

-CHO group

+NH₂ group

83. Ethyl alcohol on ____________ gives ethane

Hydration

Dehydrogenation

Oxidation

Dehydration

84. An isomer of ethanol is:

Dimethyl ether

Diethyl ether

Methanol

Acetone

85. Petroleum is mainly a mixture of

Compounds of S

Phenols

Unsaturated hydrocarbon

Saturated hydrocarbons

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

Cyclohexanol

Pysidence

Anthracene

Phenol

87. The components of petroleum can be separated due to

Having different chemical properties

Having different physical states

Having different B.P.

Having different M.P.

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

Methanol

Carbinol

Glycol

Ethanol

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

Pentagon

Hexagon

Tetrahedron

Cube

90. The self-linking of carbon atoms is called

Isomerism

Catenation

None of these

Chelation

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

PH₄⁺ - tetrahedral

NH₄⁺ - tetrahedral

ClO₂ - angular

SiCl₆²¯ -trigonal bipyramidal

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

Ethane

Ethyne

Methane

Ethene

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

Cracking

Reforming process

Hydrogenation

Oxidation

94. The number of isomers of C₆H₁₄ is:

95. The active part in a molecule is called:

Ionic complex

Functional group

Homologous series

Chemical bonding

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

NF₃ - trigonal planar

BF₃ - trigonal planar

H₂O - bent

AsF₅ - trigonal bipyramidal

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

Acetylene

Ethane

Ethanoic acid

Benzene

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

NH₃

H₂O

CO₂

CH₄

99. Isomerism which is only found in alkanes?

Functional group isomerism

Metamerism

cis – trans isomerism

Position isomerism

100. Which statement is true regarding reactivity?

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

Alkenes do not undergo addition reactions

Towards the addition reaction alkenes are more reactive than alkynes

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

Page 5 of 5

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

120.5°

109.5°

107.5°

104.5°

102. Which is a mixture of low boiling hydrocarbon

Natural gas

Wood

Graphite

Petroleum

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

Peat

Wood

Antheracite

Coal tar

104. The functional group isomer of dimethyl –ether is

Diethyl pether

Butyl alcohol

Prophyl alcohol

Ethyl alcohol

105. The perchloric acid molecule contains:

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

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.

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

Metamerism

Position isomerism

Functional group isomerism

Chain isomerism

107. 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

108. Normal by product of cracking is

Ethane

Benzene

All of these

Butane

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

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

Ammonium cyanate

Urea

Glucose

Methane

111. Polythene is a polymer of

Acetone

Ethane

Propylene

Ethene

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

H-O-

None

-O-

H-N-

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

Natural gas

Coal

Wood

Petroleum

114. Straight chain hydrocarbons are

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

None of these

In which atoms of C are in a series

Not in a series

115. Which one is not an organic compound

None of these

Cyanides

Fats

Carbohydrates

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

Coke

Coal gas

All above

Coal tar

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

Sp³-hybridization

Dsp²-hybridization

Sp²-hybridization

Sp-hybridization

118. Which of the following has linear shape?

SP³

SP²

None of these

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

CF₄ - tetrahedral

H₂O – tetrahedral

PF₃ - pyramidal

NH₃ - tetrahedral

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

MDCAT Chemistry Gases Test Online
MDCAT Chemistry Industrial Chemistry Test Online
MDCAT Chemistry Aldehydes and Ketones Test Online
MDCAT Physics Alternating Current Test Online
MDCAT Physics Fluid Dynamics Test Online
MDCAT Physics Vactors And Equilibrium Test Online
MDCAT Chemistry Alcohols And Phenols Test Online
MDCAT Chemistry Alkyl Halides Test Online
MDCAT Biology Biotechnology Online Test
MDCAT Biology Homeostasis Online Test

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

Rawalpindi Medical College RMC Entry Test Result 2025

MDCAT English Antonyms Online Test 6

MDCAT English Synonyms Test 2 Online

MDCAT English Vocabulary Online Test 7

MDCAT English Synonyms Test 4 Online

MDCAT PMC Registration 2025 Online

10 Comments

Leave a Reply Cancel reply