Advertisements
Advertisements
प्रश्न
Match the common names given in Column I with the IUPAC names given in Column II.
| Column I (Common names) |
Column II (IUPAC names) |
||
| (i) | Cinnamaldehyde | (a) | Pentanal |
| (ii) | Acetophenone | (b) | Prop-2-enal |
| (iii) | Valeraldehyde | (c) | 4-Methylpent-3-en-2-one |
| (iv) | Acrolein | (d) | 3-Phenylprop-2-enal |
| (v) | Mesityl oxide | (e) | 1-Phenylethanone |
Advertisements
उत्तर
| Column I (Common names) |
Column II (IUPAC names) |
||
| (i) | Cinnamaldehyde | (d) | 3-Phenylprop-2-enal |
| (ii) | Acetophenone | (e) | 1-Phenylethanone |
| (iii) | Valeraldehyde | (a) | Pentanal |
| (iv) | Acrolein | (b) | Prop-2-enal |
| (v) | Mesityl oxide | (c) | 4-Methylpent-3-en-2-one |
Explanation:
| (Common names) | Structure | (IUPAC names) |
| (i) Cinnamaldehyde |  |
3-Phenylprop-2-enal |
| (ii) Acetophenone |  |
1-Phenylethanone |
| (iii) Valeraldehyde |  |
Pentanal |
| (iv) Acrolein |  |
Prop-2-enal |
| (v) Mesityl oxide |  |
4-Methylpent-3-en-2- one |
APPEARS IN
संबंधित प्रश्न
Write the chemical equations to illustrate the following name reactions : Rosenmund reduction
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.
p-Nitrobenzaldehyde
Aldehydes are produced on reduction of the following by DIBAL-H:
The oxidation of toluene to benzoic acid can be stopped at the aldehyde stage to give benzaldehyde. The reagent used for the purpose is one of the following.
Ethylbenzene is generally prepared by acetylation of benzene followed by reduction and not by direct alkylation. Think of a possible reason.
Match the acids given in Column I with their correct IUPAC names given in Column II.
| Column I (Acids) |
Column II (IUPAC names) |
||
| (i) | Phthalic acid | (a) | Hexane-1,6-dioic acid |
| (ii) | Oxalic acid | (b) | Benzene-1,2-dicarboxylic acid |
| (iii) | Succinic acid | (c) | Pentane-1,5-dioic acid |
| (iv) | Adipic acid | (d) | Butane-1,4-dioic acid |
| (v) | Glutaric acid | (e) | Ethane-1,2-dioic acid |
An alkene ‘A’ (Mol. formula \[\ce{C5H10}\]) on ozonolysis gives a mixture of two compounds ‘B’ and ‘C’. Compound ‘B’ gives positive Fehling’s test and also forms iodoform on treatment with \[\ce{I2}\] and \[\ce{NaOH}\]. Compound ‘C’ does not give Fehling’s test but forms iodoform. Identify the compounds A, B and C. Write the reaction for ozonolysis and formation of iodoform from B and C.
An aromatic compound ‘A’ (Molecular formula \[\ce{C8H8O}\]) gives positive 2, 4-DNP test. It gives a yellow precipitate of compound ‘B’ on treatment with iodine and sodium hydroxide solution. Compound ‘A’ does not give Tollen’s or Fehling’s test. On drastic oxidation with potassium permanganate it forms a carboxylic acid ‘C’ (Molecular formula \[\ce{C7H6O2}\]), which is also formed along with the yellow compound in the above reaction. Identify A, B and C and write all the reactions involved.
What is the name of the given reaction of preparation of aldehyde?
\[\ce{C3COCl ->[H2][Pd/BaSO4] CH3CHO + HCl}\]
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH3}\\
\phantom{.....}|\\
\phantom{......}\ce{Cl}
\end{array}\] obtained by chlorination of n-butane, will be
Benz aldehyde + NaOH →
The number of chiral carbon in glucose is:-
When 2 – hydroxyl benzoic acid distilled with zinc dust, it give
The reagent in friedel - craft reaction is:
Convert the following:
Benzoic acid to Benzaldehyde.
Predict the reagent for carrying out the following transformations:
Benzoyl chloride to Benzaldehyde
Reagent used to convert allyl alcohol to acrolein is ______.
