Advertisements
Advertisements
प्रश्न
Which of the following observation is shown by 2-phenyl ethanol with Lucas Reagent?
पर्याय
Turbidity will be observed within five minutes.
No turbidity will be observed.
Turbidity will be observed immediately.
Turbidity will be observed at room temperature but will disappear after five minutes.
Advertisements
उत्तर
No turbidity will be observed.
Explanation:
Alcohols are soluble in Lucas reagent (conc. HCl and ZnCl2) while their halides are immiscible and produce turbidity in solution. In case of tertiary alcohols, turbidity is produced immediately as they form the halides easily. Primary alcohols do not produce turbidity at room temperature.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following:
o-nitrophenol is more acidic than o-methoxyphenol.
Write the mechanism of the following reaction :
Write the mechanism of the following reaction :
Name the reagent used in the following reaction:
Benzyl alcohol to benzoic acid.
Identify the secondary alcohols from the following set:
- \[\ce{CH3CH2CH(OH)CH3}\]
- \[\ce{(C2H5)3COH}\]
Name the factors responsible for the solubility of alcohols in water.
Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols.
What happens when (CH3)3 C – OH is heated with Cu/573 K?
Write the chemical equation in support of your answer.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
