Physical Properties of Alkynes
Trending Questions
Q.
The polymer used as electrodes in batteries is
polythene
polypropene
polyacetylene
poly vinyl chloride
Q.
CaC2H2O−−→ACu2Cl2−−−−−→NH4OHB. Incorrect statement is
Pure form of 'A' has garlic smell
'A' is used in Hawker's lamp and Holme's signal
'B' is red ppt
Oxidation state of 'Cu' in Cu2Cl2 and 'B' is same
Q.
Solubilitity of alkynes in H2O is more than their corresponding alkanes and alkenes - True or False?
- True
- False
Q.
The most volatile compound is
2, 2-dimethyl propane
2-methyl butane
Isobutane
n-pentane
Q. Solubilitity of alkynes in H2O is more than their corresponding alkanes and alkenes.
- True
- False
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. 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
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. Alkynes are heavier than water.
- True
- False