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प्रश्न
Answer in one sentence/ word.
Write the name of the electrophile used in Kolbe’s Reaction.
उत्तर
Carbon dioxide
संबंधित प्रश्न
Answer in one sentence/ word.
Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.
Answer in brief.
Give the equations of the reactions for the preparation of phenol from isopropyl benezene.
Draw intramolecular hydrogen bonding structure in o-nitrophenol.
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
An unknown alcohol is treated with Lucas reagent. Explain how you will determine whether the alcohol is primary, secondary or tertiary. Indicate by chemical equation the reaction between isopropyl alcohol and Lucas reagent.
How will you bring about the following conversions?
isopropyl alcohol to acetone
What is the action of conc. H2SO4 on carbolic acid at 373 K.
Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if CCl4 is used instead of CHCl3 in the above reaction.
Number of oxygen atoms present in salicylaldehyde are ______.
Which of the following compounds does not react with bromine in alkaline medium?
Which of the following compounds is obtained, when phenol react with bromine water?
In phenols, −OH group is attached to ___________ hybridised carbon.
The secondary alcohol is ____________.
Which of following elements does not react with hot concentrated sulphuric acid?
____________ will NOT undergo acetylation.
Phenoxide ion is more stable than phenol due to the ____________.
In Raschig's method for synthesis of phenol, the reactants used are ____________.
What is INCORRECT about the product written in the below given reaction?
\[\ce{R - CH2 - OH ->[PCC] R - COOH}\]
Which among the following compounds is used to prepare solid fuel using calcium acetate?
Which among the following is allylic secondary alcohol?
Which of the following on oxidation yields ethyl methyl ketone?
Identify product B in the following conversion?
\[\ce{Phenol ->[NaOH] A ->[CH3I] B}\]
Which of the following alcohols is NOT prepared by reduction of carbonyl compounds?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
The compound which reacts fastest with Lucas reagent at room temperature is ______.
Name the catalyst used in commercial method of preparation of phenol.
What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?
Which of the following compounds reacts immediately with Lucas reagent?
Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.
