MCQOPTIONS
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MCQOPTIONS
This section includes 84 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Chlorobenzene when condensed with chloral in the presence of conc H2SO4 yields |
| A. | gammexane |
| B. | DDT |
| C. | TNB |
| D. | C |
| E. | CI |
| Answer» C. TNB | |
| 2. |
Scurvy is caused due to the deficiency of |
| A. | Vitamin B |
| B. | Vitamin B |
| C. | Ascorbic acid |
| D. | Glutamic acid |
| Answer» D. Glutamic acid | |
| 3. |
Consider the followingEnzymes and protein can be correlated with each other in the following ways1. All proteins are enzyme2. All enzymes are protein3. All enzymes are not protein4. All proteins are not enzymeWhich is the above are correct ? |
| A. | 1 and 3 |
| B. | 2 and 4 |
| C. | 1, 2 and 3 |
| D. | 2,3 and 4 |
| Answer» C. 1, 2 and 3 | |
| 4. |
Vitamin B2 is also known as |
| A. | riboflavin |
| B. | pyridoxin |
| C. | ascorbic acid |
| D. | none of these |
| Answer» B. pyridoxin | |
| 5. |
Vitamin B1 is known as |
| A. | pytidoxine |
| B. | thiamine |
| C. | tocopheral |
| D. | riboflavin |
| Answer» C. tocopheral | |
| 6. |
Deficiency of which one of the following causes xerophthalmia |
| A. | Vitamin B |
| B. | Vitamin B |
| C. | Vitamin A |
| D. | Vitamin C |
| Answer» D. Vitamin C | |
| 7. |
Vitamin B6 is known as |
| A. | pyridoxine |
| B. | thiamine |
| C. | tocopherol |
| D. | riboflavin |
| Answer» B. thiamine | |
| 8. |
Vitamin B12 contains |
| A. | Co |
| B. | Mn |
| C. | Mg |
| D. | Fe |
| Answer» B. Mn | |
| 9. |
Consider the following1. Nucleic acids2. Carbohydrates3. ProteinsA virus is made up of which of the above |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» D. 1, 2 and 3 | |
| 10. |
Which of the following is most volatile ? |
| A. | p - Nitrophenol |
| B. | m - Nitrophenol |
| C. | o - Nitrophenol |
| D. | All of these |
| Answer» D. All of these | |
| 11. |
Which has a smell of oil of winter green ? |
| A. | Ethyl Salicylate |
| B. | Methyl Salicylate |
| C. | Benzaldehyde |
| D. | phenyl Salicylate |
| Answer» C. Benzaldehyde | |
| 12. |
Lactose on hydrolysis gives |
| A. | glucose |
| B. | fructose |
| C. | fructose + glucose |
| D. | glucose + galactose |
| Answer» E. | |
| 13. |
The vitamin that is most readily manufactured in our bodies is |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | Vitamin C |
| D. | Vitamin D |
| Answer» E. | |
| 14. |
No of tertiary carbon atoms in tertiary butyl alcohol is |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 15. |
Cellulose is a polymer of |
| A. | glucose |
| B. | fructose |
| C. | ribose |
| D. | sucrose |
| Answer» B. fructose | |
| 16. |
Gammexane is |
| A. | hexachlorobenzene |
| B. | benzene hexachloride |
| C. | p-dichlorobenzene |
| D. | chlorobenzene |
| Answer» C. p-dichlorobenzene | |
| 17. |
Picric acid is a yellow coloured compound. Its chemical name is |
| A. | trinitrobenzene |
| B. | 2, 4, 6 - trinitrophenol |
| C. | trinitrotoluene |
| D. | trinitroaniline |
| Answer» C. trinitrotoluene | |
| 18. |
What does protein deficiency in the children usually between the age of 1 to 3 years course ? |
| A. | Anaemia |
| B. | Goitre |
| C. | Kwashiokar |
| D. | Xerophtalmia |
| Answer» D. Xerophtalmia | |
| 19. |
Deficiency of which vitamin results in inflammation of skin and eczema along with diarrhoea ? |
| A. | Ascorbic acid |
| B. | Folic acid |
| C. | Nicotinic acid |
| D. | Pantothnic acid |
| Answer» D. Pantothnic acid | |
| 20. |
Starch is a polymer of |
| A. | fructose |
| B. | glucose |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» C. both (a) and (b) | |
| 21. |
Which is fight and flight organ ? |
| A. | Adrenal |
| B. | Thyroid |
| C. | Pituitary |
| D. | Kidney |
| Answer» C. Pituitary | |
| 22. |
DNA multiplication is called |
| A. | translation |
| B. | transduction |
| C. | transcription |
| D. | replication |
| Answer» E. | |
| 23. |
Main structural unit of protein is |
| A. | ester linkage |
| B. | ether linkage |
| C. | peptide linkage |
| D. | all of these |
| Answer» D. all of these | |
| 24. |
Vitamin D is |
| A. | calciferol |
| B. | ergosterol |
| C. | tocoferol |
| D. | pyridoxin |
| Answer» B. ergosterol | |
| 25. |
Beri-beri is caused due to |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | Vitamin C |
| D. | Vitamin D |
| Answer» C. Vitamin C | |
| 26. |
Which one is a disaccharide ? |
| A. | Starch |
| B. | Lactose |
| C. | Cellulose |
| D. | Fructose |
| Answer» C. Cellulose | |
| 27. |
Which one of the following base found in DNA but not in RNA ? |
| A. | cytosine |
| B. | guanine |
| C. | adenine |
| D. | thymine |
| Answer» E. | |
| 28. |
A vitamin which plays a vital role in the coagulating property of blood is |
| A. | Vitamin A |
| B. | Vitamin D |
| C. | Vitamin E |
| D. | Vitamin K |
| Answer» E. | |
| 29. |
Salicylic acid is used |
| A. | as an antiseptic |
| B. | as a medicine for rheumatic paid |
| C. | in the preparation of azo dyes |
| D. | all of the above |
| Answer» E. | |
| 30. |
The coagulation of protein is called |
| A. | dehydration |
| B. | decay |
| C. | deamination |
| D. | denaturing |
| Answer» E. | |
| 31. |
Amino acids present in insulin are |
| A. | 21 |
| B. | 51 |
| C. | 30 |
| D. | 102 |
| Answer» C. 30 | |
| 32. |
The reagent which may be used to distinguish between cane sugar and glucose solution is |
| A. | Molisch's reagent |
| B. | Iodine solution |
| C. | Baeyer' reagent |
| D. | Fehling's solution |
| Answer» E. | |
| 33. |
Which of following carbohydrates in most abundant in nature ? |
| A. | glucose |
| B. | fructose |
| C. | starch |
| D. | cellulose |
| Answer» E. | |
| 34. |
The sweetest of all sugars is |
| A. | glucose |
| B. | lactose |
| C. | sucrose |
| D. | fructose |
| Answer» E. | |
| 35. |
Chemical name of vitamin A is |
| A. | thiamine |
| B. | axerophthol (retinol) |
| C. | ascorbic acid |
| D. | nicotinamide |
| Answer» C. ascorbic acid | |
| 36. |
A compound gives both ninhydrin test and Molisch's test. It is |
| A. | a carbohydrate |
| B. | a carboxylic acid |
| C. | a protein |
| D. | an amino acid |
| Answer» D. an amino acid | |
| 37. |
Deficiency of which one of the following cause knock-knee. bow legs and pigeon chest in children |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | <sub>2</sub> |
| D. | Vitamin D |
| E. | Vitamin E |
| Answer» D. Vitamin D | |
| 38. |
The vitamin which is water soluble and antioxidant is |
| A. | Vitamin C |
| B. | Vitamin B |
| C. | Vitamin E |
| D. | Vitamin D |
| Answer» E. | |
| 39. |
Which of the following may be used as food preservative ? |
| A. | Benzene |
| B. | Sodium benzoate |
| C. | Toluene |
| D. | Sodium meta - aluminate |
| Answer» C. Toluene | |
| 40. |
Keratin, a fibrous protein is present in |
| A. | hair and nails |
| B. | wool |
| C. | skin |
| D. | all of these |
| Answer» E. | |
| 41. |
A metal which can form a complex with insulin is |
| A. | Copper |
| B. | iron |
| C. | zinc |
| D. | cobalt |
| Answer» D. cobalt | |
| 42. |
Vitamin C is |
| A. | ascarbic acid |
| B. | nicotinic acid |
| C. | citric acid |
| D. | tartaric acid |
| Answer» B. nicotinic acid | |
| 43. |
The vitamins, which are soluble in water, are |
| A. | A and B |
| B. | C and D |
| C. | B and C |
| D. | A and D |
| Answer» D. A and D | |
| 44. |
What is the bond between two amino acids in a protein called ? |
| A. | Ester bond |
| B. | Glycosidic bond |
| C. | Peptide bond |
| D. | Phosphodiester bond |
| Answer» B. Glycosidic bond | |
| 45. |
Which protein is main constituent of milk ? |
| A. | Casein |
| B. | Insulin |
| C. | Mysoine |
| D. | Keratin |
| Answer» B. Insulin | |
| 46. |
Ascorbic acid is |
| A. | a vitamin |
| B. | an enzyme |
| C. | a protein |
| D. | an amino acid |
| Answer» B. an enzyme | |
| 47. |
Proteins give purple colour with |
| A. | benedict's reagent |
| B. | iodine solution |
| C. | ninhydrin reagent |
| D. | biuret |
| Answer» D. biuret | |
| 48. |
Insulin is secreted from |
| A. | thyroid |
| B. | pancreas |
| C. | adrenal body |
| D. | none of these |
| Answer» C. adrenal body | |
| 49. |
A protein is best described as a |
| A. | Polymide |
| B. | Polyester |
| C. | Polypetide |
| D. | Polyurethane |
| Answer» D. Polyurethane | |
| 50. |
Phenol is also called |
| A. | salicylic acid |
| B. | benzyl alcohol |
| C. | carbolic acid |
| D. | salol |
| Answer» D. salol | |