InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Among the following sweeteners which one has the lowest sweetness value ?A. AlitameB. AspartameC. SaccharinD. Sucralose |
| Answer» Correct Answer - C | |
| 2. |
Arsenic drugs are mainly used in the treatment of :A. jaundiceB. typhoidC. syphilisD. cholera |
| Answer» Correct Answer - C | |
| 3. |
Detergents are known to pollute rivers and water ways. However, detergents can be made biodegradable and pollution free by taking :A. cyclic hydrocarbon chainB. shorter hydrocarbon chainC. unbranced hydrocarbon chainD. hydrocarbon with more branching |
| Answer» Correct Answer - B | |
| 4. |
What chemical is added to washing powders to keep them dry?A. Sodium perborateB. Sodium carbonateC. Sodium sulphateD. None of these |
| Answer» Correct Answer - C | |
| 5. |
Which of the following is obtained as a byproduct in the manufacture of soap ?A. GlycerineB. Sodium hydroxideC. Vegetable oilD. Salt of fatty acid |
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Answer» Correct Answer - A Glycerine is obtained as a byproduct in the manufacture of soap. |
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| 6. |
Which of the following applications of copper require refining of copper instead of alloying?A. Making statuesB. Making household utensilsC. Making shells of ammunitionsD. Making electric transmission cables. |
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Answer» Correct Answer - D Pure copper is required to manufacture electric transmission cables. |
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| 7. |
_______ is used as one of the raw materials for making soft soap.A. Sodium carbonateB. AlcoholC. Potassium hydroxideD. Finely ground pumice stone |
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Answer» Correct Answer - C Potassium hydroxide is used as one of the raw materials for making soft soap. |
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| 8. |
A broad spectrum antibiotic is :A. paracetamolB. PenicillinC. aspirinD. chloramphenicol |
| Answer» Correct Answer - D | |
| 9. |
Amoxillin is semi-syntheitc modification of :A. penicillinB. streptomycinC. tetracyclineD. chloroamphenicol |
| Answer» Correct Answer - A | |
| 10. |
Which of the following can be said to provide instant energy?A. A solution of glucose.B. A cup of tea.C. Aerated drinks.D. Milk. |
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Answer» Correct Answer - A A solution of glucose, which is the simplest carbohydrate, provides instant energy. |
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| 11. |
Assertion (A) : Fuse wire is made up of alloy constituted of lead and tin in `1 : 1` ratio by mass. Reason (R) : Both lead and tin have comparatively low melting points than other metals.A. Both (A) and (R) are true and (R) is the correct reason of (A).B. Both (A) and (R) are true but (R) is not the correct explanation of (A).C. (A) is true but (R) is false.D. (A) is false but (R) is . |
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Answer» Correct Answer - A Fuse wire is made up of alloy constituted of lead and tin in ` 1 : 1` ratio by mass as both lead and tin have comparatively low melting points than other metals. |
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| 12. |
Which of the following metals cannot be used in printed circuit boards ?A. CopperB. AluminiumC. SilverD. Zinc |
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Answer» Correct Answer - D Zinc is brittle and hence cannot be used in printed circuit boards. |
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| 13. |
Cement replaces lime mortar in the field of construction. Explain. |
| Answer» Both cement mortar and lime mortar are used for construction since they get hardened on exposure to air. But, cement is a stronger binding material than lime and due to complex chemical reactions, it forms a harder mass over a period of time. Moreover, on combining with gravel, it forms concrete which is much harder. Its strength is further enhanced when used in combination with steel in the form of RCC. Therefore, cement replaces lime mortar as a better construction material. | |
| 14. |
Which of the following noble gases cannot be used for filling up electric bulbs ?A. HeliumB. NeonC. ArgonD. Radon |
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Answer» Correct Answer - D Radon, being radioactive, cannot be used to fill up electric bulbs. |
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| 15. |
Which of the following metals cannot be used in printed circuit boards?A. CopperB. AluminiumC. SilverD. Zinc |
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Answer» Correct Answer - D Zinc is brittle and hence cannot be used in printed circuit boards. |
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| 16. |
Iodized salt does not contain the following compoundA. sodium iodideB. potassium iodideC. common saltD. lithium iodide |
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Answer» Correct Answer - D The common salt containing sodium iodide, and potassium iodide is called iodized salt. Lithium iodide is not present in the iodized salt. |
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| 17. |
The chemical composition of limestone isA. calcium carbonateB. calcium oxideC. calcium hydroxideD. calcium sulphate |
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Answer» Correct Answer - A Lime stone is common name of the compound calcium carbonate |
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| 18. |
Mortar is a mixture ofA. cement and gravelB. gravel and sandC. cement, sand and waterD. cement and water |
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Answer» Correct Answer - C Mortar is a mixture composed of cement, sand and water. |
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| 19. |
The process of coating zinc on iron surface is called _________ |
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Answer» Correct Answer - Galvanization Galvanization The process of coating zinc on iron surface is called galvanization. |
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| 20. |
Arrange the suitable steps in correct sequence for the manufacture of sodium chloride from sea water. (a)Making of hot saturated solution (b)Evaporation (c)Recrystallization (d) Collection fo sea water (e ) Addition of small quantity of sodium iodide or potassium iodideA. debaB. debcC. deabcD. dbac |
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Answer» Correct Answer - D (i) Collection of sea water (ii) Evaporation (iii) Making of hot saturated solution (iv) Recrystallization. |
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| 21. |
Arrange the steps in sequence for the manufacture of cement. (a)Mixture is pulverized using a pulverizer. (b)Limestone and clay are mixed in a definite proportion. (c)Mixture is heated to ` 1500^(@)C" to "1600^(@)C` to form clinkers. (d) Clinkers are pulverized to from fine powder and a small quantity of gypsum is added.A. acbdB. bacdC. bdcaD. dcba |
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Answer» Correct Answer - B (i) Limestone and clay are mixed in a definite proportion. (ii) Mixture is pulverized using a pulverizer . (iii) Mixture is heated to ` 1500^(@)C"to" 1600^(@)C` to from clinkers. (iv) Clinkers are pulverized to form fine powder and a small quantity of gypsum is added. |
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| 22. |
Limestone is used in the manufacture ofA. quick limeB. glassC. cementD. all of these |
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Answer» Correct Answer - D Lime stone is one of the raw materials used for the manufacture of quicklime, glass and cement. |
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| 23. |
Arrange the steps in sequence for the manufacture of cement. (a)Mixture is pulverized using a pulverizer. (b)Limestone and clay are mixed in a definite proportion. (c)Mixture is heated to ` 1500^(@) C " to " 1600^(@)C` to form clinkers. (d) Clinkers are pulverized to form fine powder and a small quantity of gypsum is added.A. a c b dB. b a c dC. b d c aD. d c b a |
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Answer» Correct Answer - B (a) Limestone and clay are mixed in a definite proportion. (b) Mixture is pulverized using a pulverizer. (c) Mixture is heated to ` 1500^(@) c " to " 1600^(@) C` to from clinkers. (d) Clinkers are pulverized to form fine powder and a small quantity of gypsum is added. Choice |
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| 24. |
Arrange the steps in sequence for the manufacture of common salt. (a)Recrystallization (b)Evaporation of sea water (c)Addition of sodium iodide and potassium iodide (d)Dissolution in water (e ) Formation of crude saltA. bedacB. bdeacC. bcdaeD. abedc |
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Answer» Correct Answer - A (i) Evaporation of sea water (ii) Formation of crude salt (iii) Dissolution in water (iv) Recrystallization (v) Addition of sodium iodide and potassium iodide and potassium iodide |
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| 25. |
Arrange the steps in sequence for the manufacture of borosilicate glass. (a) Addition of ingredients like red lead, aluminium oxide, manganese oxide, chromium oxide etc. (b)Addition of broken pieces of glass (c)Mixing up of sand, limestone, sodium carbonate, aluminium oxide and borax in required proportion (d)Melting mixture in a glass tank furnace or pot furnace (e ) Annealing process (f) Blowing of glassA. cbadfeB. cbafedC. cdbafeD. cfebad |
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Answer» Correct Answer - A (i) Mixing up of sand, limestone, sodium carbonate, aluminium oxide and borax in required proportion. (ii) addition of broken pieces of glass (iii) Addition of ingredients like red lead, aluminium oxide, manganes oxide, chrominum oxide etc. (iv) Melting mixture in a glass tank furnace or pot furnace. (v) Blowing of glass (vi) Annealing process |
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| 26. |
An apartment owner called for a plumber to replace one of the leaking pipe lines. The plumber arrived and found that the galvanized iron pipes are deteriorated and corroded. He advised the apartment owner to replace the galvanized iron pipes with the PVC pipes. Why did the plumber give the above suggestion? |
| Answer» PVC pipes are polyvinyl chloride pipes which are thermoplastic in nature and more durable as they are completely tust free and less expensive than galvanised iron pipes. Though galvanization prevents ruting , since the pipelines are in continuous contact with water, the coating may get worn off over a period of time and it may be corroded. | |
| 27. |
Cetyl trimethyl ammonium bromide is a :A. soapB. anionic detergentC. cationic detergentD. None of these |
| Answer» Correct Answer - C | |
| 28. |
Which of the following is an antidiabatic durg?A. InsulinB. PenicillinC. ChloroquineD. Aspirin |
| Answer» Correct Answer - A | |
| 29. |
Which of the following compounds is not an antacid?A. CimetidineB. PhenelzineC. RanitidineD. Aluminium hydroxide |
| Answer» Correct Answer - B | |
| 30. |
Select the incorrect statement.A. Equanil is used to control depression and hypertensionB. Norethindrone is an antifertility drugC. A 0.2% solution of phenol is an antiseptic while its 1.0% solution is a disinfectantD. A drug which kills the organism in the body is called bacteriostatic |
| Answer» Correct Answer - D | |
| 31. |
Which of the following statements about fibres are correct? 1. They can be made from viscose rayon 2. They are used for making nose tips of missiles 3. They have low thermal conductivity and used as insulators They are used for making components of bone plates Select the correct answer using the codes given below.A. 1 and 2B. 2 and 3C. 2 and 4D. 1, 2 and 4 |
| Answer» Correct Answer - D | |
| 32. |
Parathion is :A. an organic phosphorus compoundB. chlorinated aromatic compoundC. chlorinated aliphatic compoundD. benzene derivative |
| Answer» Correct Answer - A | |
| 33. |
One of the oxidants used with liquid propellants is :A. ammonium perchlorateB. nitrocelluloseC. sulphuric acidD. dinitrogen tetroxide `(N_(2)O_(4))` |
| Answer» Correct Answer - D | |
| 34. |
Which of the following can disperse benzene in water?A. B. C. D. |
| Answer» Correct Answer - C | |
| 35. |
Which of the following statement is not true?A. Pheromones are secreted outside the body by the insectsB. Aspirin is analgesic and antipyreticC. Sucrose is dipeptide commonly known as aspartameD. The DNA assists in the synthesis of RNA molecules |
| Answer» Correct Answer - C | |
| 36. |
Which of the following statement is not correct?A. Allergic conditions are cured by antihistaminesB. Hormones are continuously produced but not stored in the bodyC. The functions of the white blood cells is to protect the body against infectionsD. Catabolism involves degradation of molecules |
| Answer» Correct Answer - B | |
| 37. |
Aspirin an antipyretic drug is chemically :A. Methyl salicylateB. ethyl salicylateC. acetyl salicylic acidD. o-hydroxy benzoic acid |
| Answer» Correct Answer - D | |
| 38. |
Which one of the following types of drugs reduces fever?A. AnalgesicB. AntipyreticC. AntibioticD. Tranquilliser |
| Answer» Correct Answer - B | |
| 39. |
Which one of the following creates great thrust and high performance in a missile?A. Microalloyed goldB. Cryogenic liquidC. Carbon fibresD. Butylated hydroxy anisole |
| Answer» Correct Answer - B | |
| 40. |
Why is glucose given to patients ? |
| Answer» Glucose provides instant energy to patients | |
| 41. |
Which of the following steps is not involved in the preparation of sodium chloride from sea water ?A. EvaporationB. Dissolution in waterC. RecryztalllizationD. Distillation |
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Answer» Correct Answer - D The process of distillation is not involved in the extraction of sodium chloride from sea water. |
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| 42. |
The metallic compounds of which among the following metals is involved is involved in cloud seeding ?A. MercuryB. AluminiumC. CopperD. Silver |
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Answer» Correct Answer - D Silver nitrite or silver iodide is used in cloud seeding for artificial rain. |
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| 43. |
Which of the following pairs are bactericidal antibiotics?A. Penicillin, vancomycinB. Erythromycin, chloramphenicolC. Ofloxacin, aminoglycosidesD. Tetracycline, chloramphenicol |
| Answer» Correct Answer - A::C | |
| 44. |
The drug, which is not a tranquillizer, is :A. ibuprofenB. veronalC. luminalD. seconal |
| Answer» Correct Answer - A | |
| 45. |
Which of the following is not an antipyretic?A. AspirinB. ParacetamolC. Barbituric acidD. Phenacetin |
| Answer» Correct Answer - C | |
| 46. |
Antiallergy drugs are :A. antimicrobialsB. antihistaminesC. antiviralsD. antifungals |
| Answer» Correct Answer - B | |
| 47. |
Which of the following drugs is an analgesic?A. SulphaguanidineB. PaludrineC. AnalginD. None of these |
| Answer» Correct Answer - C | |
| 48. |
Indigo belongs to :A. vat dyesB. mordant dyesC. direct dyesD. ingrain dyes |
| Answer» Correct Answer - A | |
| 49. |
Pick out the correct statement (s) among the following.A. An alloy is a homogenous mixture of two more metals.B. An alloy may contain a non metal in addition to metals.C. Alloys possess better physical properties than the metals.D. All the above. |
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Answer» Correct Answer - D An alloy is a homogenous mixture of two or more metals or may contain a non-metal in addition to metals. These alloys possess better physical properties than the metals. |
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| 50. |
Which among the following is a detergent?A. Sodium stearateB. Sodium chlorideC. Sodium carbonateD. Sodium lauryl sulphate |
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Answer» Correct Answer - D Example of detergent is sodium lauryl sulphate. |
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