Advertisements
Advertisements
प्रश्न
Addition of sodium bisulphite to ethanol is ____________ type of reaction.
विकल्प
electrophilic addition
electrophilic substitution
nucleophilic addition
nucleophilic substitution
Advertisements
उत्तर
Addition of sodium bisulphite to ethanol is nucleophilic addition type of reaction.
APPEARS IN
संबंधित प्रश्न
The following compounds will give positive Fehling’s test.
Benzaldehyde gives all tests positive EXCEPT ____________.
Which of the following gives red precipitate with Fehling's solution?
Which of the following compounds does NOT undergo aldol condensation?
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]
Reaction is called ____________.
Acetone on Clemmensen reduction gives ____________.
Which of the following will give positive iodoform test?
The first oxidation product of secondary alcohols is ____________.
Which among the following compounds does NOT undergo aldol condensation?
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
\[\ce{Ethanoic acid ->[P/Br2] 2-bromoethanoic acid}\]. This reaction is called ____________.
Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (−CHO) group is meta directing.
In which of the following reactions new carbon-carbon bond is not formed?
Identify X and Y.
\[\ce{CH3COCH2CH2COOC2H5 ->[CH3MgBr] X ->[H3O^+] Y}\]
How will you convert benzaldehyde into the following compound?
Benzoic acid
What is the action of HCN on propanone?
How will you prepare ethyl acetate from methyl acetate?
How will you prepare acetophenone from acetyl chloride?
How will you prepare cinnamic acid from benzaldehyde?
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide 
ion?
Which of the following compounds will undergo self-aldol condensation in the presence of cold dilute alkali?
A substance C4H10O yields on oxidation a compound, C4H8O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H2SO4 gives C4H8. The structure of the compound is ______.
Which of the following is most reactive towards the addition reaction of hydrogen cyanide to form the corresponding cyanohydrin?
A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.
How are the following compound obtained from alkyne?
Acetaldehyde
How are the following compound obtained from alkyne?
Acetone
How will you prepare acetic anhydride from acetic acid?
