NMDCAT Chem Quiz : Chemistry of Hydrocarbons

A colorful educational illustration showing various hydrocarbons, including alkenes, alkynes, and aromatic compounds, with chemical structures and lab equipment in a classroom setting.

NMDCAT Chemistry Quiz: Hydrocarbons

Welcome to the NMDCAT Chemistry Quiz focusing on the Chemistry of Hydrocarbons! This quiz contains 35 multiple-choice questions designed to test your knowledge and understanding of hydrocarbons, ranging from alkenes to aromatic hydrocarbons.

Participate in this quiz to:

Assess your knowledge of organic chemistry.
Prepare for NMDCAT or other competitive exams.
Enhance your understanding of hydrocarbons and their properties.

35 Questions9 MinutesCreated by ExploringChem101

1. What is the old name of alkenes? A. Olefins B. Paraffin C. Acetylene D. None of the above

2. Which compound is used for making perfumes and dyes? A. Ethyl B. Ethyl acetate C. Ethanoate D. Ethanone

3. In water alkanes are .......... ? A. Soluble B. Insoluble C. Bitter in taste D. Sweet in taste

4. In which hydrocarbon all the four valencies of carbon are linked together with single bond? A. Alkanes B. Alkenes C. Alkynes D. None of the above

5. Aromatic hydrocarbons are also known as ........... ? A. Acetaldehyde B. Butyne C. Arenes D. Arines

6. Name an organic compound in which RCOOCOR is a functional group? A. Ester B. Acid anhydride C. Dimethyl ether D. Aliphatic hydrocarbon

7. Name an open chain hydrocarbon which is odourless? A. Aldehydes B. Aromatic C. Aliphatic D. Acetate

8. Name a hydrocarbon which is a main component of natural gas? A. Methyl B. Methane C. Ethyl D. Methanol

9. Why alkanes are known as saturated hydrocarbon? A. It consists of triple bond. B. It consists of double bond. C. It consists of single bond. D. None of the above

10. What is the general formula of alkenes? A. CnH2n B. CnH2n-2 C. CnH2n+2 D. CnH2n+OH

11. Which of the following compounds react most readily with Br(g)? (a) C2H2 (b) C3H6 (c) C2H4 (d) C4H10

12. When propene reacts with HBr in the presence of peroxide, it gives rise to (a) allyl bromide (b) isopropyl bromide (c) n-propyl bromide (d) 3-bromopropane

13. Find the alkene with maximum stability (a) cis-2-Butene (b) trans-2-Butene (c) 1-Butene (d) All have the same stability

14. Ethylene bromide on treatment with Zn gives (a) Alkyne (b) Alkene (c) Alkane (d) All of the above

15. Which of the following reactions is common in alkenes? (a) Addition (b) Elimination (c) Substitution (d) Superposition

16. Cis-trans isomerism in alkenes is due to (a) chiral carbon (b) free rotation about single bond (c) free rotation about the double bond (d) restricted rotation about the double bond

17. Baeyer’s reagent is used to detect (a) glucose (b) double bonds (c) oxidation (d) reduction

18. Which of the following will form 2 acetaldehyde molecules on ozonolysis? (a) 1-pentene (b) 2-pentene (c) 1-butene (d) 2-butene

19. Which of the following reagents will form 1-propanol from propene? (a) B2H6, H2O2, OH– (b) Aq. KOH (c) H2O, H2SO4 (d) Hg(OAc)2, NaBH4/H2O

20. Geometrical isomerism is exhibited by (a) 2-Butene (b) 2-Butyne (c) 2-Butenol (d) Butanol

21___________ is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures. A. Hydrocarbons B. Chlorination C. Isomerism D. Alkanes

22-Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called? A. Isomers B. Meromers C. Bisomers D. Psomers

23-How many primary types of isomerism there? A. 1 B. 2 C. 3 D. 4

24-Which isomerism commonly referred to as constitutional isomerism? A. Functional Isomerism B. Chain Isomerism C. Stereoisomerism D. Structural Isomerism

25-Chain Isomerism is also known as skeletal isomerism? A. TRUE B. FALSE C. Can be true or false D. Can not say

26-Which of the following is an example of functional isomerism? A. C3H7Cl B. CH3OC3H7 C. C3H6O D. C2H5OC2H5

27-Choose the incorrect option regarding Isomerism. A. They differ in both physical and chemical properties B. They have the different molecular formula C. There are two types of Isomerism : Structural and Stereo Isomerism D. Geometric and optical isomerism are two types of Stereo Isomerism

28-Which among the following does not exhibit geometric isomerism? A. 4-hexene B. 3-hexene C. 2-hexene D. 1-hexene

29-The molecular formula C5H12 contains how many isomeric alkanes? A. 2 B. 3 C. 4 D. 5

30-Geometric Isomerism is popularly known as cis-trans isomerism. A. Yes B. No C. Can be Yes Or No D. Can not say

31-What principle accounts for the observed regioselectivity of radical bromination that is not observed for radical chlorination of alkenes? A-Lechatlier’s Principle B-Avagadro’s Lab C-Hammond’s Postulate D-Markovnikov Rule

32-Which product can NOT be prepared in high yield by radical halogenation of alkanes? A-Iodoethane B-2-Bromo-2-methylheptane C-Chlorocyclopentane D-2-Bromo-2,4,4,trimethylpentane

33. Ethyne and Ethane can be separated from a mixture by passing it through (a) Pyrogallol (b) Charcoal powder (c) Concentrated H2SO4 (d) Ammonical Cu2Cl2

34. 1-butyne and 2-butyne can be identified by using which of the following reagents? (a) O2 (b) Br2 (c) NaNH2 (d) HCl

35. In the ozonolysis reaction, acetylene forms (a) Formaldehyde (b) Glycol (c) Glyoxal, formic acid (d) None of the above

NMDCAT Chem Quiz : Chemistry of Hydrocarbons

NMDCAT Chemistry Quiz: Hydrocarbons

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