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 following
|
| 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 following
|
| 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 | |