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प्रश्न
Answer in one sentence/ word.
Write the name of the electrophile used in Kolbe’s Reaction.
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उत्तर
Carbon dioxide
संबंधित प्रश्न
Choose the correct option.
Which is the most resistant alcohol towards oxidation reaction among the following?
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Give the reagents and conditions necessary to prepare phenol from Chlorobenzene.
Answer in brief.
Explain why p-nitrophenol is a stronger acid than phenol.
An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).
Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________
Write IUPAC name of crotonyl alcohol.
Write the reaction to get aspirin from salicylic acid.
How will you bring about the following conversions?
isopropyl alcohol to acetone
How will you bring about the following conversions?
2-methyl propan-2-ol to 2-methylpropene
In phenols, −OH group is attached to ___________ hybridised carbon.
Sodium metal with ethyl alcohol gives __________ gas.
The CORRECT decreasing order of boiling points for isomeric primary (1°), secondary (2°) and tertiary (3°) alcohols is ____________.
Which of following elements does not react with hot concentrated sulphuric acid?
Cumene is used in the commercial method for the manufacture of ____________.
What is the product of the following reaction?
\[\ce{CH3 - CH2 - CH2 - OH ->[conc. H2SO4][\Delta]}\]
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Identify 'Z' in the following series of reaction:
\[\ce{Butan - 2 - ol ->[PCl3] X ->[alco. KOH] Y ->[i) H2SO4][ii) H-OH/heat] Z}\]
Identify the alcohol that reacts immediately with Lucas reagent?
Identify the compound having highest boiling point from the following?
Which among the following phenolic compound is most acidic in nature?
Which of the following compounds has lowest boiling point?
Which among the following is not the method of preparation of phenol?
The order of reactivity of hydrogen halides with ether is as follows.
Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
What is the name of isopropyl alcohol according to the carbinol system?
