Halogen Containing Organic Compounds topics include: Alkyl and aryl halides, polyhalogen derivatives, grignard reagent, allyl & vinylic halides. Organic compounds that contain halogens are also known as alkyl halides or haloalkanes. They are compounds where one or more hydrogen atoms in hydrocarbons are replaced by halogen atoms.  Here are some properties and reactions of alkyl halides: C-X Bond Polarity: The carbon-halogen bond is polar, with the halogen being more electronegative. Reactivity: Alkyl halides are very reactive compounds, and they undergo many halogenation... Show more

Halogen Containing Organic Compounds topics include: Alkyl and aryl halides, polyhalogen derivatives, grignard reagent, allyl & vinylic halides.

Organic compounds that contain halogens are also known as alkyl halides or haloalkanes. They are compounds where one or more hydrogen atoms in hydrocarbons are replaced by halogen atoms. 

Here are some properties and reactions of alkyl halides:
C-X Bond Polarity: The carbon-halogen bond is polar, with the halogen being more electronegative.
Reactivity: Alkyl halides are very reactive compounds, and they undergo many halogenation reactions.
Reactions: Alkyl halides generally undergo substitution or elimination reactions. 

Some examples of organic compounds containing halogens include:
Benzylic halides: These compounds contain a carbon-halogen bond, where the carbon atom is bonded to a hydrogen and a halogen. They are important intermediates in many chemical reactions, and they have many applications in industry.
Dichloromethane: This is a natural organic compound with a sweet odor and a colorless liquid. It is miscible in a wide range of organic solvents and is a useful solvent in chemical processes. 

Halogenated compounds can contaminate the water, soil, and air, as well as plants and animals. They can also harm the ozone layer.

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Organic Chemistry Practice Test: Halogen Containing Organic Compounds

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25 Questions

1. Benzene reacts with chlorine to form benzene hexachloride in presence of which of the following reactant?

AlCl3Bright sunlightNickelZinc

2. What will be the product when addition of hydrogen chloride to vinyl chloride occurs?

1,1-dichloroethane1,2-dichloroethane1-chloroethane1-chloro 2,2-dichloroethane

3. Which of the following statement is incorrect about allylic halide?

stability of the allylic radical can be utilized in the preparation of allylic halidesAllylic bonds are often weaker and therefore more easily brokenSN1 reactions of allylic halides are possibleThe positions adjacent to alkene C=C often show decrement in reactivity

4. Which of the following compounds would not give tert-butyl alcohol when treated with excess methylmagnesium bromide?

acetyl chlorideacetic anhydridemethyl acetateacetaldehyde

5. Which one of the following is the correct formula of methylene dichloride?

ClC ≡ CClCH2Cl2ClCH = CHClCH2(Cl) CH2Cl

6. Which of the following statements about Grignard reagent is false?

Grignard reagents (RMgBr) add to the carbonyl group of aldehydes and ketonesGrignard reagents are prepared in ether or tetrahydrofuran (THF)Grignard reagents are decomposed by water and alcoholAn organosodium compound is not very reactive compared to a Grignard reagent

7. When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed?

1 moles of butane1 moles of ethane2 moles of butane2 moles of ethane

8. Which of the following reactant gives the best method of preparation of alkyl halides when reacts with alcohol?

Zn/HClPCl5SOCl2/ PyridinePCl3

9. Which of the following is not the method of preparation of alkyl halide?

Halogenation of alkeneDarzen’s methodHydration of alkeneAddition of HX on alkenes

10. How Benzene hexachloride (BHC) is used?

InsecticidesAntisepticsFertilizersAnaesthetics

11. A Grignard’s reagent may be made by reacting magnesium with which of the following compound?

Ethyl alcoholMethyl amineDiethyl etherEthyl iodide

12. Which of the following is considered as allylic carbon atom?

1324

13. Which of the following is not an allylic halide?

14. Dehydrohalogenation of 1,2 di-bromo cyclohexane gives which of the following compound?

15. Which of the following is the commercial method of preparation of Chlorobenzene?

Friedel-Crafts reactionWurtz Fitting reactionGrignard reactionRaschig process

16. Alkyl halides can be converted into Grignard reagents by _______________

Warming them with Mgcl2Boiling them with Mg ribbon in alcoholic solutionRefluxing them with MgCl2 solutionWarming them with magnesium powder in dry ether

17. Central nervous system can be depressed by the use of which of the following?

DDTFreonIodoformChloroform

18. Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?

carbon dioxideethyl formate2-methyloxiraneethylene oxide

19. CF_xCl_y [where x + y = 4], why these compounds are not used?

These are fluoro carbonsThese are very expensiveThese are difficult to synthesiseThey deplete ozone layer

20. What is the IUPAC name of chloroform?

Carbon tetrachlorideChloromethaneDichloromethaneTrichloromethane

21. Which of the following is the product for the given reaction?

(CH3)3CCH=CH2(CH3)3CCH=CHNH2(CH3)3CCH=CHOH(CH3)3CCH≡CH

22. Which of the following reagents, when treated with phenylmagnesiuim bromide followed by acid workup, will yield 2-phenylethanol?

OxiraneDiethyl etherEthanolEthanal

23. Which of the following is true about chlorobenzene?

Chlorobenzene is nearly as reactive as methyl chlorideChlorobenzene is less reactive than benzyl chlorideChlorobenzene is more reactive than isopropyl chlorideChlorobenzene is more reactive than ethyl bromide

24. Depletion of Ozone is believed to increase which of the following?

Ultraviolet raysGreeneryPopulationPollution

25. Which one of the following possess highest melting point?

m-dichlorobenzeneChlorobenzeneo-dichlorobenzenep-dichlorobenzene