Free Printable Alkane, Alkene, Alkyl Halide

Worksheets

Alkane, Alkene, Alkyl Halide

Total questions: 24

Worksheet time: 17mins

Name

Class

Date

Which of the following is FALSE regarding the structure of alkyl halides?

Most reactions of alkyl halides result from breaking polar bond.

The C atom is electron-rich (partial negative charge), making a nucleophile that attacks electrophiles.

Carbon and halogens have different electronegativities.

Carbon-halogen bonds are polarised.

Name the compound.

2-Ethyl-1-Fluorocyclohexane

2-Fluoro-1-ethylcyclohexane

1-Fluoro-2-ethylcyclohexane

1-Ethyl-2-fluorocyclohexane

Name the compound.

2-Bromo-3-ethyl-5-methylhexane

3-ethyl-2-bromo-5-methylhexane

5-methyl-3-ethyl-2-bromohexane

bromohexane

Which reagent will you use for the following reaction?

CH3CH2CH2CH3 → CH3CH2CH2CH2Cl + CH3CH2CHClCH3

Cl2/UV light

NaCl + H2SO4

Cl2 gas in dark

Cl2 gas in the presence of iron in dark

A primary alkyl halide would prefer to undergo _____________.

SN1 reaction

SN2 reaction

α–Elimination

Racemisation

Is haloalkane polar or non polar?

polar molecules

non polar molecules

How would you classify 2-bromopropane as a haloalkane?

Primary

Secondary

Tertairy

Methyl

Name this structure.

3-chloropropane

3-chloropentane

Chloropentane

Chloropropane

Name this structure.

1,3-dibromo-2-chlorobutane

2,4-dibromo-3-chlorobutane

1,3-bromo-2-chlorobutane

2,4-bromo-3-chlorobutane

10.

The reactivity of halides in SN2 reaction is

3^o>2^o>1^o

2^o>1^o>3^o

1^o>3^o>2^o

1^o>2^o>3^o

11.

The other name of alkyl halides?

Haloform

Haloalkanes

12.

Alkyl halide relative reactivity order

I > Br > Cl > F

I < Br < Cl < F

13.

Which of the following statement is FALSE about nucleophile?

It is a lone pair donor

It is a Lewis base

Attracted to electron deficient carbon

It must be a negatively charged ions

14.

Reaction below shows S_N2 reaction. Which statement is FALSE?

Bimolecular collision

OH^- is a nucleophile

Two step mechanism

Molecularity is 2

15.

Name the major product formed from the reaction of 2-bromo-2,3-dimethylbutane with KOH and ethanol.

2-butene

2,3-dimethyl-1-butene

2,3-dimethyl-2-butene

2,3-dimethylbutene

16.

State whether the following reactions are likely to undergo SN1 or SN2 mechanism.

SN1

SN2

17.

Choose the CORRECT statement on Grignard reagent.

Grignard reagent can be used to decrease the number of carbon chain length.

A reaction of alkyl halide with Fe metal produces an organometallic compound.

Grignard reagent must be used in dry conditions.

Grignard reagent is not sensitive towards moisture.

18.

Hydrocarbons are compounds that contain

Carbon, only

Carbon and Hydrogen, only

Carbon, Oxygen, and Hydrogen, only

Carbon, Oxygen, Hydrogen, and Nitrogen, only

19.

Name the compound.

hexane

2,3-dimethylbutane

ethylbutane

2,2-dimethylbutane

20.

Classify the compound based on the functional group present.

alkane

alkene

alkyne

aromatic

21.

Which formula represents a saturated hydrocarbon?

22.

What is the observation obtained when alkene react with acidified KMnO₄

decolourize purple solution

decolourize reddish brown solution

decolourize blue solution

yellow precipitate formed

23.

Which formula represents an unsaturated hydrocarbon?

24.

Unsaturated molecules contain...

A carbon to carbon double bond

Only single bonds between carbon atoms

A water molecule

A hydroxyl group

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Alkane, Alkene, Alkyl Halide

Total questions: 24

Worksheet time: 17mins

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