Advertisements
Advertisements
प्रश्न
What is the action of Zn – Hg / conc. HCl on propanone?
Advertisements
उत्तर
Propanone on reduction with zinc-amalgam and concentrated hydrochloric acid gives propane
APPEARS IN
संबंधित प्रश्न
Write the structures of A and B in the following reactions:
Write the structure of the product of the following reaction:
\[\ce{H3C - C ≡ C - H ->[Hg^{2+}, H2SO4]}\]
Complete the synthesis by giving missing starting material, reagent or product.
Complete the synthesis by giving missing starting material, reagent or product.
Complete the synthesis by giving missing starting material, reagent or product.
Write a note on ‘aldol condensation’.
Write only reactions for the preparation of benzophenone from benzonitrile.
Write chemical equation for the following:
Gatterman - Koch formylation
Write the IUPAC name of the follow
\[\begin{array}\ce{\phantom{--..}O}\\\ce{\phantom{--..}||}\\ \ce{CH2=CH-C-CH3}\end{array}\]
Write chemical equation for the following :
Rosenmund reduction
How will you convert calcium acetate to acetaldehyde?
Complete the following reaction:
\[\ce{(C6H5CH2)2Cd + 2CH3COCI}\]
Answer the following in one sentence.
Write reaction showing conversion of ethanenitrile into ethanol.
Answer the following in one sentence.
Predict the product of the following reaction:
\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?
What is the action of following reagents on ethanoic acid?
P2O5/heat
Write reactions for the following conversions.
Benzene to Benzaldehyde
Catalyst used in Rosenmund reduction is ____________.
An acylchloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as ______.
Which of the following alcohols needs acidic KMnO4 to convert it into aldehyde or ketone?
Which of the following is a Stephen reaction?
Which of the following represents Etard's reaction?
The reaction in which methyl group on benzene ring is converted to aldehydic group is called ______.
Identify 'A' and 'B' respectively in following reaction.
\[\ce{Toluene ->[Cl2][hv] A ->[H2O][\Delta] B}\]
Identify the compound A and Bin following reaction.
\[\ce{CH3Cl ->[KCN(alc)][\Delta] A ->[2H2O][HCl] B + NH4Cl}\]
Identify 'A' in the following reaction:
\[\begin{array}{cc}
\phantom{...........}\ce{O}\\
\phantom{...........}||\\
\ce{2A + (C6H5CH2)2 Cd -> 2CH3 - C - CH2 - C6H5 + CdCl2}\end{array}\]
Identify 'A' in the following reaction.
\[\ce{A ->[H2][Pd-BaSO4] C6H5CHO + HCl}\]
Which of the following is obtained by hydrogenation of benzoyl chloride in presence of Pd on BaSO4?
Chromyl chloride converts methyl group to a chromium complex, which on acid hydrolysis gives corresponding aldehyde. This reaction is called ____________.
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): SO2 is reducing while TeO2 is an oxidising agent.
Reason (R): Reducing property of dioxide decreases from SO2 to TeO2.
Select the most appropriate answer from the options given below:
Which of the following reaction is shown by alkynes?
How ketones are prepared from nitriles?
Which reagent is used in Etard reaction?
Z is:
Ozonolysis of 2, 3 dimethyl but-2-ene, followed by decomposition by Zn dust and water gives ______.
Write Stephen reaction for the preparation of aldehyde.
How butanone is prepared from alcohol?
How are the following compound obtained by hydration of alkenes?
Ethyl alcohol
How are the following compound obtained by hydration of alkenes?
Isopropyl alcohol
Write the name of the product formed when ethanoyl chloride is treated with dimethyl cadmium.
Write the reaction of Ethanoyl chloride on diethylamine.
Write preparation of propanone by using ethanoyl chloride and dimethyl cadmium.
