Unsaturated Hydrocarbons

What is the IUPAC name of "olefins"?

• Alkanes
• Alkenes
• Alkynes
• Alkyls

Which of the following alkene is in gaseous state at room temperature?

• Butene
• Butane
• Pentene
• Pentyne

What is the general formula of the alkynes?

• C_nH_2n+1
• C_nH_2n+2
• C_nH_2n-1
• C_nH_2n-2

• 2-methyl-but-1-yne-3-ene
• 1-methyl-but-1-yne-3-ene
• 2-methyl-but-1-ene-3-yne
• 1-methyl-but-1-ene-3-yne

• 3-ethyl-2,2-dimethyl-3-hexyne
• 4-ethyl-5,5-methyl-2-hexayne
• 4-butyl-2-hexayne
• 4-ethyl-5,5-dimethyl-2-hexyne

Tags

NGSS.HS-PS1-3

What is the structure of 2-methyl pent-2-ene ?

• a
• b
• c
• d

• Trans butene
• Isobutene
• Cis butene
• Isoprene

Tags

NGSS.HS-PS1-2

Which of the following alkene reaction follows Markovnokv's rule?

• CH₂ = CH₂ + H₂ → CH₃ – CH₃
• CH₂ = CH₂ + Br₂ → Br-CH₂ – CH₂-Br
• CH₂ = CH- CH₃+ HCl → CH₃ – CHCl - CH₃
• CH₂ = CH₂ + H₂O → OH-CH₂ – CH₃

When an alkyne burns, it produces 4 mol of water. What is the name of alkyne?

• Butyne
• Propyne
• Hexyne
• Pentyne

Which of the natural polymer of alkenes produces natural rubber?

• Isoprene
• Isobutene
• 1-methyl-2-butene
• 2-methyle-1-butyne