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प्रश्न
What are the limitations to prepare ether by this method?
उत्तर
Limitations:
- When alcohol is heated with dehydrating agents like concentrated H2SO4 or H3PO4 two products, either ether or an alkene can form depending upon the temperature.
- Use of higher temperature or 2°/3° alcohols gives alkene as the major product.
APPEARS IN
संबंधित प्रश्न
Anisole on heating with concerntrated HI gives _________.
Choose the correct option.
Ethers react with cold and concentrated H2SO4 to form ________.
Write the preparation of ethanol from methyl magnesium iodide.
What is the action of following on diethyl ether?
PCl5
In the following reaction:
\[\ce{Ether ->[Hot HI] A + B + H2O}\],
If A and B are identical, the ether is ____________.
Which of the following compounds does not contain \[\begin{array}{cc}\backslash\phantom{......}\\\ce{C = O}\\
/\phantom{......}\\\end{array}\] group?
Action of hydrogen iodide on anisole gives ______.
____________ on heating with excess of conc. HI gives two moles of ethyl iodide.
Which of the following statements is INCORRECT for ethers?
In ethers, two C-O sigma bonds are formed by ____________ overlap.
A mixed ether on hydrolysis gives ____________.
\[\ce{(CH3)2CH - O - CH3 ->[Cold HI] X + Y}\]
\[\ce{X ->[K2Cr2O7][dil. H2SO4] Z}\]
\[\ce{Y ->[NaOH(aq)][\Delta] CH3OH}\]
Identify X, Y and Z.
To prepare ethanol from methyl magnesium bromide, the other reagent required is ____________.
What are the products of the following reaction?
\[\ce{(CH3)3C - O - CH3 + HI ->[cold] ?}\]
Which of the following compounds does NOT contain \[\begin{array}{cc}\backslash\phantom{.......}\\\ce{C = O}\\
/\phantom{.......}\\\end{array}\] group?
The major product of the reaction between tert-butyl chloride and sodium ethoxide is ______.
Isopropyl methyl ether when treated with cold hydrogen iodide gives ______.
Tert-butyl methyl ether on treatment with hydrogen iodide in cold gives ______.
Formation of diethyl ether from ethanol is based oh a ______.
Ethers when dissolved in cold concentrated sulphuric acid forms ______.
Why ethers possess a small net dipole moment?
Explain Williamson's synthesis.
Write preparation of diethyl ether.
