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प्रश्न
Give simple chemical tests to distinguish between the following pairs of compounds :
Ethanol and phenol
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उत्तर १
| Test | Ethanol | Phenol |
| Coupling reaction | Negative test |  |
| Iodoform test |  |
Negative test |
उत्तर २
Ethanol and phenol can be chemically distinguished by Iodoform test
\[\ce{C2H5OH->[I2][NaOH][CH5CHo]->\underset{\text{Yellow precipitate}}{CHI3} v}\]
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संबंधित प्रश्न
Give reason for the higher boiling point of ethanol in comparison to methoxymethane.
Identify the chiral molecule in the following pair :
Write the structures of A, B and C in the following reactions :
\[ C_6 H_5 {NO}_2 \to^{Sn/HCI} A \to^{{NaNO}_2 /HCI}_{273 K} B \to^{H_2 O}_∆ C\]
Alcohols have high boiling points because of ____________.
Which of the following has lowest boiling point?
Assertion: Boiling points of alcohols and ethers are high.
Reason: They can form intermolecular hydrogen-bonding.
A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product. The mass percentage of carbon in P is ______. (to the nearest integer) (Atomic mass: C = 12; H = 1; O = 16)
Arrange the following in order of increasing boiling point:
Ethoxyethane, Butanal, Butanol, n-butane
What is esterifications? How is an ester obtained from alcohol or phenol?
How are the following conversions carried out?
Methyl magnesium bromide → 2 -Methylpropan-2-ol.
