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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What is the action of the following regent on propanal? Sodium Bisulphite

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प्रश्न

What is the action of the following regent on propanal?

Sodium Bisulphite

थोडक्यात उत्तर
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उत्तर

\[\begin{array}{cc}
\phantom{.....}\ce{O}\phantom{.......................................}\ce{OH}\\
\phantom{...}||\phantom{........................................}|\\
\ce{\underset{Propanal}{CH2 - CH2} - C - H + \underset{Sodium Bisulphite}{NaHSO3} -> H3C - CH2 - C - SO3Na^+}\\
\phantom{............................................}|\\
\phantom{............................................}\ce{H}\end{array}\]

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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Short answer questions (Type-II)

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एससीईआरटी महाराष्ट्र Chemistry [English] Standard 12 Maharashtra State Board
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Short answer questions (Type-II) | Q 5.2

संबंधित प्रश्‍न

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.

\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]


Identify B in the following reaction,

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


Acetone reacts with iodine (I2) to form iodoform, in the presence of ____________.


Which of the following compounds does NOT undergo aldol condensation?


Compounds of general formula, are called ____________.

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


Acetone on Clemmensen reduction gives ____________.


Which of the following is a Wolf - Kishner 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:


Predict the product Z in the following series of reactions.

\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]


Phenyl methanal is reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are ____________.


Identify A, B, C and D.

\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]


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


How is the following conversion effected phenyl methanal into benzoin?


How will you prepare ethane from sodium acetate?


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


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?


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 not correctly matched?


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


How are the following compound obtained from alkyne?

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 a slightly acidic medium.




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.


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


How will you prepare acetic anhydride from acetic acid?


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


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