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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] Standard 12 Maharashtra State Board
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Multiple choice questions | Q 7

संबंधित प्रश्‍न

Benzaldehyde does NOT show positive test with ______.


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 does not give yellow solid on treatment with sodium hypoiodlte?


In Clemmensen's reaction, ketone gives ____________.


Acetone on Clemmensen reduction gives ____________.


Compounds of general formula, are called ____________.

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


The number of α-H atoms in butanal is ____________.


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


Which among the following compounds does NOT undergo aldol condensation?


In which case, chiral carbon is not generated by reaction with HCN.


In which of the following reactions new carbon-carbon bond is not formed?


Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.


How will you prepare acetic anhydride from acetic acid?


How will you prepare lactic acid from ethanol?


How will you prepare ethane from sodium acetate?


How acetone is converted into propane.


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?


Which of the following compounds does not undergo a haloform reaction?


Which of the following is not correctly matched?


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


What is the action of hydrogen cyanide on the following?

Acetone


Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.


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


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


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