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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Addition of sodium bisulphite to ethanol is ____________ type of reaction.

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प्रश्न

Addition of sodium bisulphite to ethanol is ____________ type of reaction.

पर्याय

  • electrophilic addition

  • electrophilic substitution

  • nucleophilic addition

  • nucleophilic substitution

MCQ
रिकाम्या जागा भरा
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उत्तर

Addition of sodium bisulphite to ethanol is nucleophilic addition type of reaction.

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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Multiple choice questions

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एससीईआरटी महाराष्ट्र Chemistry [English] Standard 12 Maharashtra State Board
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Multiple choice questions | Q 5

संबंधित प्रश्‍न

Benzaldehyde does NOT show positive test with ______.


Write another name of disproportionation reaction?


Explain haloform reaction with suitable example.


Which of the following is Schiff's reagent?


If acetaldehyde is treated with Fehling's solution, the change that occurs in the system is ____________.


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 ____________.


Which of the following carbonyl compounds does NOT undergo aldol condensation?


Which of the following is Clemmensen reduction?


Which of the following does NOT give yellow precipitate when reacted with (NaOH + I2) mixture?


Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:


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 ____________.


Which one of the following reaction is an example of disproportionation reaction.


Identify A, B and C.


What is the action of HCN on ethanal?


How is the following conversion effected Hex-3-yne into hexan-3-one?


How will you prepare cinnamic acid from benzaldehyde?


Which of the following compounds is most reactive towards nucleophilic addition reactions?


How propanal is converted into propane.


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?


Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.


How are the following compound obtained from alkyne?

Acetaldehyde


How are the following compound obtained from alkyne?

Acetone


Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.




Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Nitration of the compound is carried out; this compound gives a red-orange ppt. with 2,4-DNP, this compound undergoes the Cannizzaro reaction but not aldol, then possible product due to nitration is:


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