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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

The following compounds will give positive Fehling’s test.

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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

Benzaldehyde does NOT show positive test with ______.


Write reaction showing aldol condensation of cyclohexanone.


_____________ reaction is used to synthesize straight alkyl substituted benzenes.


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

Tollen’s reagent


Benzaldehyde gives all tests positive EXCEPT ____________.


Ethyl methyl ketone can be reduced to n-butane by which of the following reactions?


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


Compounds of general formula, are called ____________.

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]


An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.


Which of the following does not give yellow solid on treatment with sodium hypoiodlte?


How will you convert benzaldehyde into the following compound?

Benzophenone


What is the action of HCN on ethanal?


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


How is the following conversion effected phenyl methanal into benzoic acid?


Complete the following reaction.

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


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


Which of the following compound will show a positive silver mirror test?


The reagent used in Wolf - Kishner reduction is ______.


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


Which one of the following substituents at para-position is most effective in stabilizing the phenoxide  ion?


Which of the following compound will give positive iodoform test?


What is the number of different products formed when mixture of ethanal and propanal reacts with aq. NaOH after warming?


Give two examples which undergo Wolf-Kishner reduction.


How are the following compound obtained from alkyne?

Acetone


What is the action of hydrogen cyanide on the following?

Acetone


Write reactions when phenol reacts with Dilute HNO3


What is the action of the following regent on propanal?

Sodium Bisulphite


How will you prepare Acetic anhydride from acetic acid.


How will you prepare acetic anhydride from acetic acid?


The products formed in the following reaction, A and B are:


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