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. Benzene is best described as:

An aromatic compound

A cycloalkane

A saturated hydrocarbon

An alkene

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

Combustion of alkane

Addition of HBr to ethene

Nitration of benzene

Hydrolysis of ester

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

Butane

Propane

Ethane

Methane

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

Nitrobenzene

Benzaldehyde

Phenol

Toluene

5. Which reaction is typical of alkenes?

Addition

Substitution

Combustion only

Elimination

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

Only sigma bonds

Only pi bonds

Double and single alternating bonds

Sigma and delocalized pi bonds

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

Benzaldehyde

Benzyl chloride

Chlorobenzene

Toluene

8. Why does benzene not decolorize bromine water?

It is saturated

It reduces bromine

It undergoes substitution instead

It forms addition products

9. Which functional group is present in alkenes?

–OH

C≡C

–COOH

C=C

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

π electrons in separate orbitals

Alternating bonds

π electrons localized

Delocalized π molecular orbitals

11. Which hydrocarbon burns with a sooty flame?

Propane

Benzene

Ethane

Ethene

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

Phenol

Nitrobenzene

Benzene sulfonic acid

Benzaldehyde

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

Methane

Benzene

Ethene

Ethane

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

Ethane

Butane

Isobutane

Propane

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

Base

Oxidizing agent

Catalyst

Reducing agent

16. What is the general formula of alkanes?

CnH2n–2

CnH2n

CnH2n+2

CnH2n+1

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

Propane

Propene

Propyne

Butene

18. How many π electrons are present in benzene?

19. Which of the following shows aromatic behavior?

Cyclobutadiene

Benzene

Cyclohexene

Cyclopentadiene

20. Which reagent is used for bromination of benzene?

Br₂/FeBr₃

HBr

Br₂/UV

Br₂ only

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

Localized π bonds

Resonance and delocalized electrons

High molecular weight

Single and double bond alternation

22. Which of the following is an alkyne?

Butyne

Ethene

Propane

Butane

23. What is the result of sulfonation of benzene?

Nitrobenzene

Benzene sulfonic acid

Benzyl chloride

Phenol

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

Chlorination

Oxidation

Electrophilic substitution

Hydrolysis

25. How many sigma bonds are there in benzene?

Page 2 of 2

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

Butane

Methane

Ethane

Benzene

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

Substitution

Addition

Hydrolysis

Polymerization

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

sp³

dsp²

sp²

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

Cyclohexane

Naphthalene

Toluene

Benzene

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

Structure with delocalized electrons

Structure with unpaired electrons

Kekulé structures

Structure with alternating double bonds

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

Delocalized electrons

High reactivity to addition

High stability

Undergo substitution

32. The resonance structure of benzene was proposed by:

Kekulé

Lewis

Mendeleev

Dalton

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

Hydrogenation

Elimination

Substitution

Hydrolysis

34. Which condition favors the halogenation of benzene?

Dilute acid

Basic medium

UV light only

Presence of Lewis acid catalyst

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

sp-sp

s-s head-on

sp²-sp²

p-p sideways

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

Butyne

Propyne

Propane

Propene

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

Cyclobutane

But-2-ene

Ethene

Isobutane

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

HCl

NaCl

AgNO₃

Br₂ (in CCl₄)

39. The stability of benzene is explained by:

Delocalization of pi electrons

Single and double bonds

Localized bonding

Carbon-carbon single bonds only

40. What is the shape of the benzene molecule?

Tetrahedral

Square

Linear

Hexagonal planar

41. What is the molecular formula of benzene?

C₅H₁₀

C₆H₁₀

C₆H₁₂

C₆H₆

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

Huckel’s rule

Avogadro's law

Pauli exclusion principle

Hund’s rule

43. What is the bond angle in benzene?

60°

120°

109.5°

90°

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

Benzene

Cyclopropane

Cyclohexane

Ethane

45. How many π bonds are there in benzene?

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

Cyclobutane

Butane

Methylpropene

Ethane

47. What type of hybridization is present in benzene?

sp²

None

sp³

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

Ethene

Butane

Cyclobutane

Propane

49. Which of the following hydrocarbons is saturated?

Butyne

Ethyne

Propane

Ethene

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

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

MDCAT English Vocabulary Online Test 8

MDCAT Biology Biotechnology Online Test

MDCAT Biology Kingdom Prokaryotes Test Online Mcqs

MDCAT Biology Variety of Life Test Online MCQs

MDCAT Biology Cell Structure & Function Test Online

New MDCAT Syllabus 2025 Chapter Wise Download PDF online

Leave a Reply Cancel reply