Reactions of Halogenoalkanes

What's a nucleophillic substitution reaction ?

• a halogen atom is exchanged for a new atom; new atom attacks the carbon and creates a halide ion

• a hydrogen atom is exchanged for a carbon atom; hydrogen atom attacks the carbon and creates a halide ion

• A process with start, middle and end

• A process with initiation, propagation and termination

Tags

NGSS.HS-PS1-2

What is an elimination reaction ?

• One carbon atom and one oxygen atom are removed from two of the carbon atoms and a double bond forms between two carbon aroms.

• Whena dipole molecule approaches the hydrocarbon, it attacks and bonds to any carbon and the other side of the dipole atom attaches to the adjacent carbon.

• One hydrogen atom and halogen atom are removed from neighbouring carbon atoms in the molecule and a double bond forms between the two carbon atoms.

If the halogenoalkane reacts with cold hydroxide ions (nucleophile) in water, this will be produced:

• an alkane

• an alkene

• a carboxlyic acid

• an alcohol

A particle with an unpaired electron:

• Ion

• Nucleophile

• Free Radical

• Neutrophile

Tags

NGSS.HS-PS1-1

Why does the reaction

C₂H₅X + OH^- → C₂H₅OH + X^-

occur faster if X is iodine instead of Bromine?

• the I^- ion is a stronger nucleophile than the Br^- ion.

• the I^- ion is less hydrated in water than the Br^- ion

• C-Br bond is more polar than the C-I bond

• the C-Br bond is stronger than the C-I bond

Tags

NGSS.HS-PS1-5

Pentanenitrile can be made by reaction of 1-bromobutane with potassium cyanide.

Which of these is the correct name for the mechanism of this reaction?

• Electrophilic addition

• Electrophillic substitution

• Nucleophilic substitution

• Nucleophillic addition

Which of the following mechanisms does not occur in reactions of bromoethane?

• Electrophillic addition

• Elimination

• Nucleophillic substitution

what is the Ozone layer being destroyed by?

• Fossil Fuels

• CFC'S

• UV Rays

Which is not a possible product when propane, C₃H₈, reacts with chlorine in sunlight?

• H₂

• C₆H₁₄

• C₃H₇Cl

• Cl₂

Tags

NGSS.HS-PS1-1

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