Give a chemical test to distinguish between ethane and ethene.
Last updated date: 21st Mar 2023
•
Total views: 206.1k
•
Views today: 1.84k
Answer
206.1k+ views
Hint: Put both the samples in separate test tubes and dissolve them in carbon tetrachloride solution. Carbon tetrachloride is a non-polar solvent. When we pass bromine gas from both the test tubes and observe the changes taking place in the test tube.
Complete answer:
Take ethane and ethene in two separate test tubes and dissolve them in carbon tetrachloride solution. Pass bromine gas into the two test tubes. If the color of bromine gas is discharged, then that gas is ethene and if the color of gas remains the same, then that test tube contains ethane gas. Ethane is an alkane and is saturated. If a compound is saturated, it means all the bonds in the compound are single bonds. Ethene is an alkene and is unsaturated because it contains carbon-carbon double bonds. When we add bromine to ethene, the color of bromine gets discharged because bromine attacks the double bonds present in alkene to form bromoalkane. So, the bromine is used up and the color disappears. Ethane is a saturated hydrocarbon and has only single bonds. So, it does not react with bromine and the color of bromine remains the same in the test tube containing ethane.
Note:
Remember that bromine is used to test unsaturation in hydrocarbons. Bromine solution is brown in color. When bromine solution is added to the unsaturated hydrocarbon the brown color disappears if the hydrocarbon is an unsaturated hydrocarbon.
Complete answer:
Take ethane and ethene in two separate test tubes and dissolve them in carbon tetrachloride solution. Pass bromine gas into the two test tubes. If the color of bromine gas is discharged, then that gas is ethene and if the color of gas remains the same, then that test tube contains ethane gas. Ethane is an alkane and is saturated. If a compound is saturated, it means all the bonds in the compound are single bonds. Ethene is an alkene and is unsaturated because it contains carbon-carbon double bonds. When we add bromine to ethene, the color of bromine gets discharged because bromine attacks the double bonds present in alkene to form bromoalkane. So, the bromine is used up and the color disappears. Ethane is a saturated hydrocarbon and has only single bonds. So, it does not react with bromine and the color of bromine remains the same in the test tube containing ethane.
Note:
Remember that bromine is used to test unsaturation in hydrocarbons. Bromine solution is brown in color. When bromine solution is added to the unsaturated hydrocarbon the brown color disappears if the hydrocarbon is an unsaturated hydrocarbon.
Recently Updated Pages
Most eubacterial antibiotics are obtained from A Rhizobium class 12 biology NEET_UG

Salamin bioinsecticides have been extracted from A class 12 biology NEET_UG

Which of the following statements regarding Baculoviruses class 12 biology NEET_UG

Sewage or municipal sewer pipes should not be directly class 12 biology NEET_UG

Sewage purification is performed by A Microbes B Fertilisers class 12 biology NEET_UG

Enzyme immobilisation is Aconversion of an active enzyme class 12 biology NEET_UG

Trending doubts
Difference Between Plant Cell and Animal Cell

Write an application to the principal requesting five class 10 english CBSE

Ray optics is valid when characteristic dimensions class 12 physics CBSE

Give 10 examples for herbs , shrubs , climbers , creepers

Write the 6 fundamental rights of India and explain in detail

Write a letter to the principal requesting him to grant class 10 english CBSE

List out three methods of soil conservation

Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE

Epipetalous and syngenesious stamens occur in aSolanaceae class 11 biology CBSE
