NEET
Practice Test 8
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Which of the following alcohols gives the best yield of dialkyl ether on being heated with at race of sulphuric acid?

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    1-pentanol Primary alcohols readily form ether when heated with conc.H2SO4.

Methylphenyl ether can be obtained by reacting

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    \(C_{6}H_{6}O^{-} + CH_{3}I \rightarrow C_{6}H_{5}OCH_{3} + I^{-}\)

Diethyl ether on heating with conc. HI gives two moles of

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    \(C_{2}H_{5}OC_{2}H_{5} + 2HI \overset{\Delta }{\rightarrow} 2C_{2}H_{5}I + H_{2}O\)

The compound that undergoes dehydration very easily is

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    The ease of dehydration of alcohols is 3° > 2° >1°.Tertiary alcohols undergo dehydration more easily than primary and secondary alcohols.

Etherates are

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The ether that undergoes electrophilic substitution reactions is

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    Only alkylaryl ethers e.g., C6H5OCH3 undergoes electrophilic substitution reactions.

In the following reaction
\(C_{2}H_{5}OC_{2}H_{5} + 4[H] \overset{Red P + HI}{\rightarrow} 2X + H_{2}O\) , X is

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Alcohols, Phenols And Ethers
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