Home/MDCAT/MDCAT Chemistry of Hydrocarbons Test Online

MDCAT Chemistry of Hydrocarbons Test Online

Mustansar KhanLast Updated: May 26, 2025

Chemistry Transition Elements MCQS Online Test

MDCAT Chemistry Transition Elements Chapter Online Test

Total Questions:	49
Time Allowed:	30 Minutes
Total Marks:	49
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 Transition Elements Test

Please wait...

Page 1 of 2

Uncategorized

1. What is the molecular formula of benzene?

C₅H₁₀

C₆H₆

C₆H₁₀

C₆H₁₂

2. How many sigma bonds are there in benzene?

3. Which of the following is a reaction of alkynes?

Hydrolysis

Hydrogenation

Substitution

Elimination

4. Which of the following shows aromatic behavior?

Benzene

Cyclopentadiene

Cyclohexene

Cyclobutadiene

5. Which of the following is not a valid resonance structure of benzene?

Structure with alternating double bonds

Structure with unpaired electrons

Structure with delocalized electrons

Kekulé structures

6. Which rule is used to determine aromaticity in compounds like benzene?

Hund’s rule

Pauli exclusion principle

Avogadro's law

Huckel’s rule

7. Which of the following is not an aromatic compound?

Benzene

Naphthalene

Cyclohexane

Toluene

8. What is the IUPAC name of CH≡C–CH₃?

Propene

Butyne

Propane

Propyne

9. Which reaction is typical of alkenes?

Addition

Combustion only

Substitution

Elimination

10. Which compound is used as a test for unsaturation?

Br₂ (in CCl₄)

HCl

NaCl

AgNO₃

11. Which of the following is not a property of aromatic hydrocarbons?

Delocalized electrons

Undergo substitution

High stability

High reactivity to addition

12. Which of the following is formed during nitration of benzene?

Toluene

Nitrobenzene

Phenol

Benzaldehyde

13. Which of the following hydrocarbons is saturated?

Ethyne

Butyne

Ethene

Propane

14. Which of the following is an isomer of butene?

Ethane

Methylpropene

Butane

Cyclobutane

15. What is the IUPAC name of CH₃–CH₂–CH₃?

Propane

Butane

Methane

Ethane

16. Which of the following is a positional isomer of but-1-ene?

Isobutane

Cyclobutane

But-2-ene

Ethene

17. What is the result of sulfonation of benzene?

Phenol

Benzyl chloride

Nitrobenzene

Benzene sulfonic acid

18. What is the outcome when benzene reacts with CH₃Cl in the presence of AlCl₃?

Chlorobenzene

Benzyl chloride

Toluene

Benzaldehyde

19. Why does benzene not decolorize bromine water?

It reduces bromine

It undergoes substitution instead

It is saturated

It forms addition products

20. Which functional group is present in alkenes?

C=C

–OH

–COOH

C≡C

21. Which of the following is an alkyne?

Butyne

Ethene

Butane

Propane

22. Which of the following is an example of an electrophilic substitution reaction?

Addition of HBr to ethene

Nitration of benzene

Combustion of alkane

Hydrolysis of ester

23. The reaction of benzene with Cl₂ in the presence of FeCl₃ is called:

Chlorination

Oxidation

Electrophilic substitution

Hydrolysis

24. What is the product when benzene is treated with conc. HNO₃ and conc. H₂SO₄?

Phenol

Benzene sulfonic acid

Nitrobenzene

Benzaldehyde

25. How many π bonds are there in benzene?

Page 2 of 2

26. What is the hybridization of carbon atoms in alkanes?

sp²

sp³

dsp²

27. Which of the following alkanes has a branched structure?

Ethane

Isobutane

Propane

Butane

28. Which of the following is a closed-chain hydrocarbon?

Cyclobutane

Butane

Propane

Ethene

29. What is the general formula of alkanes?

CnH2n

CnH2n–2

CnH2n+2

CnH2n+1

30. What is the shape of the benzene molecule?

Linear

Tetrahedral

Hexagonal planar

Square

31. Which of the following hydrocarbons has the highest degree of unsaturation?

Benzene

Butane

Ethane

Methane

32. What type of hybridization is present in benzene?

sp²

sp³

None

33. Which type of orbital overlap forms the π bonds in benzene?

s-s head-on

sp-sp

sp²-sp²

p-p sideways

34. What is the role of FeCl₃ in benzene chlorination?

Oxidizing agent

Reducing agent

Base

Catalyst

35. Which hydrocarbon burns with a sooty flame?

Ethene

Propane

Benzene

Ethane

36. Which of the following best explains the stability of benzene?

High molecular weight

Resonance and delocalized electrons

Single and double bond alternation

Localized π bonds

37. Which of the following reactions is characteristic of benzene?

Addition

Substitution

Polymerization

Hydrolysis

38. Which of the following is the correct name for CH₂=CH–CH₃?

Propyne

Propane

Propene

Butene

39. What kind of bonding exists in the benzene ring?

Sigma and delocalized pi bonds

Only pi bonds

Only sigma bonds

Double and single alternating bonds

40. The resonance structure of benzene was proposed by:

Lewis

Dalton

Kekulé

Mendeleev

41. Which of the following is an open-chain hydrocarbon?

Benzene

Ethane

Cyclohexane

Cyclopropane

42. Which of the following describes the MO model of benzene?

π electrons localized

π electrons in separate orbitals

Delocalized π molecular orbitals

Alternating bonds

43. Benzene is best described as:

An alkene

An aromatic compound

A cycloalkane

A saturated hydrocarbon

44. The stability of benzene is explained by:

Single and double bonds

Carbon-carbon single bonds only

Localized bonding

Delocalization of pi electrons

45. How many π electrons are present in benzene?

46. Which reagent is used for bromination of benzene?

Br₂/FeBr₃

HBr

Br₂/UV

Br₂ only

47. Which compound will give a positive test with Baeyer's reagent?

Ethane

Ethene

Methane

Benzene

48. Which condition favors the halogenation of benzene?

Presence of Lewis acid catalyst

Basic medium

UV light only

Dilute acid

49. What is the bond angle in benzene?

120°

109.5°

60°

90°

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

PMDC MDCAT Registration Online 2025 Last Date
MDCAT Test Schedule 2025 Dates Announced
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

Mustansar KhanLast Updated: May 26, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

MDCAT Chemistry of Hydrocarbons Test Online

Chemistry Transition Elements MCQS Online Test

MDCAT Chemistry Transition Elements Chapter Online Test

MDCAT Chemistry Transition Elements Test

Uncategorized

You Might Also Like

Mustansar Khan

Leave a Reply Cancel reply

Chemistry Transition Elements MCQS Online Test

MDCAT Chemistry Transition Elements Chapter Online Test

MDCAT Chemistry Transition Elements Test

Uncategorized

You Might Also Like

Mustansar Khan

Your Related

PMC NLE Exam Registration Online 2025 Last Date Syllabus Result

MDCAT Fundamental Concepts of Chemistry Test Online MCQs

New MDCAT Syllabus 2025 Chapter Wise Download PDF online

CMH Lahore MDCAT Entry Test Result 2025 Merit Lists 1st, 2nd, 3rd

MDCAT 2025 Biology Man and His Environment MCQS Test Online

MDCAT Chemistry Solutions Online Test

Leave a Reply Cancel reply