Physical Properties of Alkynes
Trending Questions
Q. The correct order of C - H bond length in CH3−CH3, CH2=CH2 and CH≡CH is:
- CH3−CH3<CH2=CH2<CH≡CH
- CH2=CH2<CH3−CH3<CH≡CH
- CH≡CH<CH2=CH2<CH3−CH3
- all are equal
Q.
The carbon-hydrogen bond length is shortest in
ethane
ethene
ethyne
methane
Q. Which of the following improperly describes the physical property of an alkyne?
- Relatively non-polar
- Insoluble in alcohols and ethers
- less dense than water
- Nearly insoluble in water
Q. Choose the correct statement(s) regarding alkynes :
- All alkynes are gases at room temperature.
- Alkynes are colourless
- Alkynes are highly polar in nature.
- Except ethyne, alkynes are odourless.
Q. The correct order of C - H bond length in CH3−CH3, CH2=CH2 and CH≡CH is:
- CH3−CH3<CH2=CH2<CH≡CH
- CH2=CH2<CH3−CH3<CH≡CH
- CH≡CH<CH2=CH2<CH3−CH3
- all are equal
Q. Choose the correct statment(s) for alkynes :
- Boiling point∝1Molar mass
- Melting point∝Molar mass
- Density of alkynes increases with the increase in their molar mass
- Boiling point∝1Van der Waals force
