McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Pharmacy (B. Pharma) , Pharmacy .
Chapters
| 1. |
In aldehydes and ketones, carbon of carbonyl group is……….. |
| A. | 3 sp hybridised |
| B. | 2 sp hybridised |
| C. | sp hybridised |
| D. | Unhybridised |
| Answer» B. 2 sp hybridised | |
| 2. |
Aldehydes are isomeric with……….. |
| A. | Ketones |
| B. | Ethers |
| C. | Alcohols |
| D. | Fatty acids |
| Answer» A. Ketones | |
| 3. |
Which of the following compounds does not contain an -OH group……….. |
| A. | Phenol |
| B. | Carboxylic acid |
| C. | Aldehydes |
| D. | Alcohols |
| Answer» C. Aldehydes | |
| 4. |
IUPAC name of CH3COCH3 is……….. |
| A. | Acetone |
| B. | 2-propanone |
| C. | Dimethyl ketone |
| D. | Propanal |
| Answer» B. 2-propanone | |
| 5. |
Which of the following types of isomerism is shown by Pentanone. |
| A. | Chain isomerism |
| B. | Position isomerism |
| C. | Functional isomerism |
| D. | All of these |
| Answer» D. All of these | |
| 6. |
IUPAC name of CHO CCl3 is………….. |
| A. | Chloral |
| B. | Trichloro acetaldehyde |
| C. | 1, 1, 1-trichloroethanal |
| D. | 2, 2, 2-trichloroethanal |
| Answer» D. 2, 2, 2-trichloroethanal | |
| 7. |
Which of the following is a mixed ketone ……….. |
| A. | Pentanone |
| B. | Acetophenone |
| C. | Benzophenone |
| D. | Butanone |
| Answer» A. Pentanone | |
| 8. |
Chloral is……….. |
| A. | CCl3CHO |
| B. | CCl3COCCH3 |
| C. | CCl3COCCl3 |
| D. | CCl3CH2OH |
| Answer» C. CCl3COCCl3 | |
| 9. |
Carbonyl compounds are usually …………… |
| A. | Ethers, aldehydes, ketones and carboxylic acids |
| B. | Aldehydes, ketones and carboxylic acids |
| C. | Aldehydes and ketones |
| D. | Carboxylic acids |
| Answer» C. Aldehydes and ketones | |
| 10. |
Acetone and acetaldehyde are ………….. |
| A. | Position isomers |
| B. | Functional isomers |
| C. | Not isomers |
| D. | Chain isomers |
| Answer» C. Not isomers | |
| 11. |
Which of the aldehyde is most reactive ? |
| A. | C6H5CHO |
| B. | CH3CHO |
| C. | HCHO |
| D. | All the equally reactive |
| Answer» D. All the equally reactive | |
| 12. |
Acetophenone is prepared from |
| A. | Rosenmund reaction |
| B. | Sandmayer reaction |
| C. | Wurtz reaction |
| D. | Friedel craft reaction |
| Answer» D. Friedel craft reaction | |
| 13. |
Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction……… |
| A. | Glyoxal |
| B. | Cyclohexane |
| C. | Acetophenone |
| D. | Hexabromo cyclohexane |
| Answer» C. Acetophenone | |
| 14. |
Ketones where R =R1=1 alkyl group. It can be obtained in one step by |
| A. | Hydrolysis of esters |
| B. | Oxidation of primary alcohol |
| C. | Oxidation of secondary alcohol |
| D. | Reaction of acid halide with alcohols |
| Answer» C. Oxidation of secondary alcohol | |
| 15. |
The oxidation of toluene to benzaldehyde by chromyl chloride is called…….. |
| A. | Cannizzaro reaction |
| B. | Wurtz reaction |
| C. | Etard reaction |
| D. | Reimer-Tiemann reaction |
| Answer» C. Etard reaction | |
| 16. |
Catalyst use in the reamer tiemman reaction. |
| A. | LiAlH4 |
| B. | CuCl3 |
| C. | Ni / H2 |
| D. | Pd |
| Answer» B. CuCl3 | |
| 17. |
Dry heating of calcium acetate gives |
| A. | Acetaldehyde |
| B. | Ethane |
| C. | Acetic acid |
| D. | Acetone |
| Answer» D. Acetone | |
| 18. |
Acetophenone is prepared by the reaction of which of the following in the presence of AlCl3 catalyst…….. |
| A. | Phenol and acetic acid |
| B. | Benzene and acetone |
| C. | Benzene and acetyl chloride |
| D. | Phenol and acetone |
| Answer» C. Benzene and acetyl chloride | |
| 19. |
Isopropyl alcohol on oxidation gives……. |
| A. | Acetone |
| B. | Acetaldehyde |
| C. | Ether |
| D. | Ethylene |
| Answer» A. Acetone | |
| 20. |
Which of the following compound gives a ketone with Grignard reagent . |
| A. | Formaldehyde |
| B. | Ethyl alcohol |
| C. | Methyl cyanide |
| D. | Methyl iodide |
| Answer» C. Methyl cyanide | |
| 21. |
Benzaldehyde can be prepared by oxidation of toluene by …………. |
| A. | Acidic KMnO4 |
| B. | K2Cr2 O7 |
| C. | CrO2Cl2 |
| D. | All of these |
| Answer» C. CrO2Cl2 | |
| 22. |
CH3 CO CH3 can be obtained by ……….. |
| A. | Heating acetaldehyde with methanol |
| B. | Oxidation of propyl alcohol |
| C. | Oxidation of isopropyl alcohol |
| D. | Reduction of propionic acid |
| Answer» C. Oxidation of isopropyl alcohol | |
| 23. |
Propyne on hydrolysis in presence of HCl and HgSO4 gives…………. |
| A. | Acetaldehyde |
| B. | Acetone |
| C. | Formaldehyde |
| D. | None of these |
| Answer» B. Acetone | |
| 24. |
Which of the following on reaction with NH3 gives urinary antiseptic compound. |
| A. | HCHO |
| B. | CH3 CHO |
| C. | C6H5 CHO |
| D. | C6H5CH3CHO |
| Answer» A. HCHO | |
| 25. |
The oxidation product of 2-propanol with hot conc. HNO3 is ……….. |
| A. | Ethanoic acid |
| B. | Propanone |
| C. | Propanal |
| D. | None of these |
| Answer» B. Propanone | |
| 26. |
Ethyne on reaction with water in the presence of HgSO4 and H2SO4 gives………. |
| A. | Acetone |
| B. | Acetaldehyde |
| C. | Acetic acid |
| D. | Ethyl alcohol |
| Answer» B. Acetaldehyde | |
| 27. |
When a mixture of methane and oxygen is passed through heated molybdenum oxide, the main product formed is……….. |
| A. | Methanoic acid |
| B. | Ethanal |
| C. | Methanol |
| D. | Methanal |
| Answer» D. Methanal | |
| 28. |
Benzoin is……….. |
| A. | Compound containing an aldehyde and a ketonic group |
| B. | α , ß -unsaturated acid |
| C. | α-hydroxy aldehyde |
| D. | α -hydroxy ketone |
| Answer» D. α -hydroxy ketone | |
| 29. |
The oxidation of benzyl chloride with lead nitrate gives…………… |
| A. | Benzyl alcohol |
| B. | Benzoic acid |
| C. | Benzaldehyde |
| D. | p –chlorobenzaldehyde |
| Answer» C. Benzaldehyde | |
| 30. |
Glycerol reacts with potassium bisulphate to produce ………… |
| A. | Allyl iodide |
| B. | Allyl sulphate |
| C. | Acryl aldehyde |
| D. | Glycerol trisulphate |
| Answer» C. Acryl aldehyde | |
| 31. |
The reagent used in Gatterman Koch aldehyde synthesis is……….. |
| A. | Pb/ BaSO4 |
| B. | Alkaline KMnO4 |
| C. | Acidic KMnO4 |
| D. | CO + HCl |
| Answer» D. CO + HCl | |
| 32. |
Reduction of Aldehydes and Ketones to hydrocarbon take place in the presence of …………… |
| A. | Zn amalgam and HCl acid |
| B. | Pb /BaSO4 |
| C. | Anhydrous AlCl3 |
| D. | Ni / Pt |
| Answer» A. Zn amalgam and HCl acid | |
| 33. |
Reduction of CO to 2CH can be carried out with………… |
| A. | Catalytic reduction |
| B. | Na/ C2 H5 OH |
| C. | Wolf-Kischner reduction |
| D. | LiAlH4 |
| Answer» C. Wolf-Kischner reduction | |
| 34. |
For C2H5 CHO which of the following is incorrect………. |
| A. | On oxidation it yields benzoic acid |
| B. | It is used in perfumery |
| C. | It is an aromatic aldehyde |
| D. | On reduction yields phenol |
| Answer» D. On reduction yields phenol | |
| 35. |
Grignard reagent on reaction with acetone forms……… |
| A. | Tertiary alcohol |
| B. | Secondary alcohol |
| C. | Acetic acid |
| D. | Acetaldehyde |
| Answer» A. Tertiary alcohol | |
| 36. |
Which of the following is incorrect…………. |
| A. | FeCl3 is used in the detection of phenols |
| B. | Fehling solution is used in the detection of glucose |
| C. | Tollen’s reagent is used in detection of unsaturation |
| D. | NaHSO3 is used in the detection of carbonyl compounds |
| Answer» C. Tollen’s reagent is used in detection of unsaturation | |
| 37. |
Consider the following statement Acetophenone can be prepared by…………
|
| A. | 1 and 2 |
| B. | 1 and 4 |
| C. | 1 and 3 |
| D. | 3 and 4 |
| Answer» C. 1 and 3 | |
| 38. |
Which of the following products is formed when benzaldehyde is treated with CH3 MgBr and the addition product so obtained is subjected to acid hydrolysis. |
| A. | Secondary alcohol |
| B. | A primary alcohol |
| C. | Phenol |
| D. | Tert-Butyl alcohol |
| Answer» A. Secondary alcohol | |
| 39. |
Aldol condensation will not be observed in………. |
| A. | Chloral |
| B. | Phenyl acetaldehyde |
| C. | Hexanal |
| D. | Ethanol |
| Answer» A. Chloral | |
| 40. |
Which of the following organic compounds exhibits positive Fehling test as well as iodoform test…………. |
| A. | Methanal |
| B. | Ethanol |
| C. | Propanone |
| D. | Ethanal |
| Answer» D. Ethanal | |
| 41. |
Which of the following will undergo aldol condensation……… |
| A. | Acetaldehyde |
| B. | Propanaldehyde |
| C. | Benzaldehyde |
| D. | Trideuteroacetaldehyde |
| Answer» A. Acetaldehyde | |
| 42. |
Acetaldehyde cannot show ……………. |
| A. | Iodoform test |
| B. | Lucas test |
| C. | Benedict's test |
| D. | Tollen's test |
| Answer» B. Lucas test | |
| 43. |
Benzaldehyde + Sodium hydroxide |
| A. | Benzyl alcohol |
| B. | Benzoic alcohol |
| C. | Hydrobenzamide |
| D. | Cinnamic acid |
| Answer» A. Benzyl alcohol | |
| 44. |
Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as …………… |
| A. | Perkin’s reaction |
| B. | Cannizzaro’s reaction |
| C. | Sandmeyer’s reaction |
| D. | Claisen condensation |
| Answer» B. Cannizzaro’s reaction | |
| 45. |
To distinguish between formaldehyde and acetaldehyde, we require………. |
| A. | Tollen's reagent |
| B. | Fehling's solution |
| C. | Schiff's reagent |
| D. | Caustic soda solution |
| Answer» D. Caustic soda solution | |
| 46. |
Which of the following will not give iodoform test? |
| A. | Ethanal |
| B. | Ethanol |
| C. | 2-propanone |
| D. | 3-pentanon |
| Answer» D. 3-pentanon | |
| 47. |
Which of the following will not give the iodoform test ? |
| A. | Acetophenone |
| B. | Ethanal |
| C. | Benzophenone |
| D. | Ethanol |
| Answer» C. Benzophenone | |
| 48. |
Haloform test is given by the following substance…………… |
| A. | HCHO |
| B. | (CH3)2 CO |
| C. | CH3OCH3 |
| D. | CH3CH2Cl |
| Answer» B. (CH3)2 CO | |
| 49. |
Dimethyl ketones are usually characterized through…………. |
| A. | Tollen's reagent |
| B. | Iodoform test |
| C. | Schiff's test |
| D. | Benedict's reagent |
| Answer» B. Iodoform test | |
| 50. |
If formaldehyde and KOH heated then we gets, |
| A. | Acetylene |
| B. | Methane |
| C. | Methyl alcohol |
| D. | Ethyl formate |
| Answer» C. Methyl alcohol | |
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