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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

The following compounds will give positive Fehling’s test. - Chemistry

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प्रश्न

The following compounds will give positive Fehling’s test.

पर्याय

  • Propanone

  • Pentan-3-one

  • Butanone

  • Butanal

MCQ
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उत्तर

Butanal

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

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Multiple choice questions | Q 7

संबंधित प्रश्‍न

Write reaction showing aldol condensation of cyclohexanone.


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


Write another name of disproportionation reaction?


Write reactions for the action of the following reagents on p-chlorobenzaldehyde.

Phenyl hydrazine


Benzaldehyde gives all tests positive EXCEPT ____________.


Which of the following gives red precipitate with Fehling's solution?


Identify B in the following reaction,

\[\ce{Acetaldoxime ->[Na][alcohol] A ->[NaNO2][HCl] B + H2O + N2\uparrow}\]


Which of following is not a property of red phosphorus?


\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]

Reaction is called ____________.


Which of the following represents the structure of isopropyl methyl ketone?


The compound which does NOT undergo haloform reaction is ____________.


Which of the following will give positive iodoform test?


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.


\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:


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


What is the action of HCN on 2, 4-dichlorobenzaldehyde?


Complete the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]


Identify A, B and C.


How will you prepare acetamide from methyl cyanide?


How will you prepare lactic acid from ethanol?


How will you prepare malachite green from benzaldehyde?


Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.


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.


Give two examples which undergo Wolf-Kishner reduction.


How are the following compound obtained from alkyne?

Acetone


How will you prepare acetic anhydride from acetic acid?


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