Advertisements
Advertisements
प्रश्न
Which is the most suitable reagent for the following conversion?
\[\begin{array}{cc}
\phantom{....................}\ce{O}\phantom{.....................................}\ce{O}\phantom{.}\\
\phantom{....................}||\phantom{......................................}||\phantom{.}\\
\phantom{}\ce{CH3 - CH = CH - CH2 - C - CH3 -> CH3 - CH = CH - CH2 - C - OH}\phantom{.}
\end{array}\]
विकल्प
Tollen’s reagent
Benzoyl peroxide
\[\ce{I2}\] and \[\ce{NaOH}\] solution
\[\ce{Sn}\] and \[\ce{NaOH}\] solution
Advertisements
उत्तर
\[\ce{I2}\] and \[\ce{NaOH}\] solution
Explanation:
\[\begin{array}{cc}
\phantom{......................}\ce{O}\phantom{....................................}\ce{O}\phantom{..............}\\
\phantom{....................}||\phantom{.....................................}||\phantom{............}\\
\phantom{}\ce{CH3CH = CH - CH2 - C - CH3 ->[I2 + NaOH] CH3CH = CHCH2 - C - ONa + CHI3}\\
\phantom{............................................}\ce{↓ H2O}\\
\phantom{.......................................................}\ce{O}\\
\phantom{.......................................................}||\\
\phantom{.........................................}\ce{CH3CH = CHCH2 - C - OH}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
How is carbolic acid prepared from chlorobenzene?
Predict the products of the following reactions:
Show how the following compound can be converted to benzoic acid.
Ethylbenzene
Show how the following compound can be converted to benzoic acid.
Acetophenone
Show how the following compound can be converted to benzoic acid.
Bromobenzene
Show how the following compound can be converted to benzoic acid.
Phenylethene (Styrene)
An organic compound (A) (molecular formula C8H16O2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene. Write equations for the reactions involved.
How will you prepare the given compound from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom.
Phenylacetic acid
Complete the synthesis by giving missing starting material, reagent or product.
What is the action of following reagents on glucose?
1. Bromine water
2. Hydroxylamine
The reagent which does not react with both, acetone and benzaldehyde.
Through which of the following reactions number of carbon atoms can be increased in the chain?
(i) Grignard reaction
(ii) Cannizaro’s reaction
(iii) Aldol condensation
(iv) HVZ reaction
Match the reactions given in Column I with the suitable reagents given in Column II.
| Column I (Reactions) |
Column II (Reagents) |
| (i) Benzophenone Diphenylmethane | (a) \[\ce{LiAlH4}\] |
| (ii) Benzaldehyde 1-Phenylethanol | (b) \[\ce{DIBAL-H}\] |
| (iii) Cyclohexanone Cyclohexanol | (c) \[\ce{Zn(Hg)/Conc. HCl}\] |
| (iv) Phenyl benzoate Benzaldehyde | (d) \[\ce{CH3MgBr}\] |
Assertion: Aldehydes and ketones, both react with Tollen’s reagent to form silver mirror.
Reason: Both, aldehydes and ketones contain a carbonyl group.
Substitution of one alkyl group by replacing hydrogen of primary amines
Y is:
Alkaline hydrolysis of C4H8Cl2 gives a compound (A) which on heating with NaOH and I2 produces a yellow precipitate of CHI3. The compound (A) should be ______.
Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda lime gives 'C. The compound 'C' is ______.
