Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: Ethers Brief Questions and Answers
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
Chemistry
1
...
The groups R and R’ may be either the same or different
...
Write a brief account of nomenclature of ethers in common system
...
The two – alkyl groups bonded to the functional group ( – O – ) are
written alphabetically followed by the word ether
...
e
...
For example:
CH3 – O – CH3
Methyl
Ethyl
i
...
, Dimethyl ether
...
Write a brief account of IUPAC system of naming ethers
...
The oxygen atom is
taken with the smaller alkyl group while the larger alkyl group forms the parent chain
For example,
1
2
3
CH3 – O – C2H5
CH3 – O – CH2 – CH2 – CH3
(Small
(larger
(Small
(Larger
group)
group)
group)
group)
i
...
, Methoxy ethane
i
...
, Methoxy propane
4
...
Explain why
...
5
...
Explain why
...
So lower ethers are highly inflammable
...
Account for the solubility of ether in water
...
R
+
O H – O
R
+
H O
R
R
This is due to some hydrogen bonding between water and ether molecules
...
Explain why ethers are inert
...
8
...
CH3 – CH2 – O – CH2 – CH3 + Cl2
dark
CH3 – CH – O – CH – CH3 + 2 HCl
Cl
Cl
’ – Dichlorodiethyl ether
9
...
C2H5 – O – C2H5 + 10Cl2
C2Cl5 – O – C2 Cl5 + 10 HCl
Diethyl ether
10
...
When an ether is heated with dilute sulphuric acid under pressure alcohols are
formed
...
dil
...
When an ether is heated with phosphorus pentachloride, alkyl halides are formed
...
Give the common name for the following
...
Ethyl chloride
Dimethyl ether,
Complete the reaction:
(b) Ethyl methyl ether
...
Ether is a versatile solvent medium for reaction – Give reason
...
The inert
character has made ether a versatile solvent and medium for reaction
...
Complete and balance the equation
...
2 C2H5 Cl + POCl3
Ethyl chloride
Complete and balance the equation
Title: Ethers Brief Questions and Answers
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.
Description: The word ether is derived from Greek word aither meaning the clear sky or air; it represents the airy or volatile nature of typical compounds of this class. Ethers are the compounds having the general formula R – O – R. They can be regarded as the dialkyl derivatives of water or monoalkyl derivatives of alcohols.