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
Benzaldehyde does NOT show positive test with ______.
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Write another name of disproportionation reaction?
Identify B in the following reaction,
\[\ce{Acetaldoxime ->[Na][alcohol] A ->[NaNO2][HCl] B + H2O + N2\uparrow}\]
If acetaldehyde is treated with Fehling's solution, the change that occurs in the system is ____________.
Compounds of general formula, are called ____________.
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR'}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{H}\phantom{....}\ce{OR'}\phantom{} \end{array}\]
Which of the following carbonyl compounds does NOT undergo aldol condensation?
Which of the following is a Wolf - Kishner reduction?
Which of the following reagents is used to avoid further oxidation of aldehydes?
\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:
\[\ce{Ethanoic acid ->[P/Br2] 2-bromoethanoic acid}\]. This reaction is called ____________.
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid.
In which of the following reactions new carbon-carbon bond is not formed?
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
How is the following conversion effected Hex-3-yne into hexan-3-one?
Complete the following reaction.
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]
How will you prepare lactic acid from ethanol?
How will you prepare acetophenone from acetyl chloride?
How will you prepare acetaldehyde from ethyne?
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.
Which of the following compounds will undergo self-aldol condensation in the presence of cold dilute alkali?
Which of the following reaction does not involve either oxidation or reduction?
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.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.
What is the action of the following regent on propanal?
Sodium Bisulphite
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid.
How will you prepare Acetic anhydride from acetic acid.
