Chemistry Quiz

Which compound has a boiling point that is influenced by hydrogen bonding?

• CH₃CHO

• CH₃OCH₃

• HCOOCH₃

• HCOOH

Which pair has species with different shapes?

• BeCl₂ and CO₂

• CH₄ and NH₄⁺

• NH₃ and BF₃

• SCl₂ and H₂O

Phosphorus forms a compound with hydrogen called phosphine, PH₃. This compound can react with a hydrogen ion, H⁺

Which type of interaction occurs between PH₃ and H⁺?

• Dative covalent bond

• Dipole - dipole forces

• Hydrogen bonding

• Ionic bonding

Limonene is a hydrocarbon found in the rind of citrus fruits.

What is the molecular formula of limonene?

• C₁₀H₁₂

• C₁₀H₁₄

• C₁₀H₁₆

• C₁₀H₁₈

Which organic reaction is an example of nucleophilic substitution?

• CH₃CH₂Br  +  NaOH  →  CH₂CH₂  +  H₂O  +  NaBr

• CH₃CH₂Br  +  NaOH  →  CH₃CH₂OH  +  NaBr

• CH₂CH₂  +  HCl  →  C₂H₅Cl

• C₂H₆  +  Cl₂  →  C₂H₅Cl  +  HCl

Which compound is chiral?

• 1-chloro-3-methylbutane

• 2-chloro-2-methylbutane

• 2-chloro-3-methylbutane

• 3-chloropentane

Which pair of compounds are functional group isomers of each other?

• butan-1-ol and butanal

• ethylpropanoate and pentanoic acid

• hex-1-ene and hex-2-ene

• propylamine and propanenitrile

Which compound shows stereoisomerism?

• 2-methylbut-2-ene

• 2-chloropropan-1-ol

• difluorochlorobromomethane

• pent-1-ene

Which substance forms propanoic acid as one of the products when it reacts with hot concentrated acidified potassium manganate(VII)?

• But-1-ene

• But-2-ene

• 2-methylpropene

• 2-methylbut-1-ene

An amine is produced in the following reaction:

 

CH₃CH₂Br  +  2NH₃  →  CH₃CH₂NH₂  +  NH₄I

What is the mechanism of the above reaction?

• Electrophilic addition

• Electrophilic substitution

• Nucleophilic addition

• Nucleophilic substitution