MCQOPTIONS
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MCQOPTIONS
This section includes 1175 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Name the salt whose aqueous solution will turn blue litmus to red? |
| A. | Sodium Acetate |
| B. | Potassium Sulphate |
| C. | Potassium Carbonate |
| D. | Ammonium Sulphate |
| Answer» E. | |
| 2. |
What is the chemical name of Baking Soda? |
| A. | Potassium Carbonate |
| B. | Potassium Hydrogen Carbonate |
| C. | . Sodium Hydrogen Carbonate |
| D. | Sodium Carbonate |
| Answer» D. Sodium Carbonate | |
| 3. |
Bleaching powder is formed by treating chlorine with....... |
| A. | Calcium Hydroxide |
| B. | Potassium Hydrogen carbonate |
| C. | Magnesium Hydroxide |
| D. | None of the above |
| Answer» B. Potassium Hydrogen carbonate | |
| 4. |
On dissolving in water, which of the following salt give an alkaline solution? |
| A. | Ammonium Chloride |
| B. | Sodium Carbonate |
| C. | Sodium Acetate |
| D. | Sodium Chloride |
| Answer» C. Sodium Acetate | |
| 5. |
Which of the following salt on dissolving in water give a neutral solution? |
| A. | Ammonium Chloride |
| B. | Ammonium Sulphate |
| C. | Potassium Chloride |
| D. | Sodium Acetate |
| Answer» D. Sodium Acetate | |
| 6. |
Name the salt when on dissolving in water give an acidic solution? |
| A. | Potassium Chloride |
| B. | Ammonium Chloride |
| C. | Sodium Carbonate |
| D. | Sodium Acetate |
| Answer» C. Sodium Carbonate | |
| 7. |
Name the salt whose aqueous solution will have no effect on either red litmus or blue litmus? |
| A. | Potassium Sulphate |
| B. | Sodium Chloride |
| C. | Sodium Carbonate |
| D. | Ammonium Sulphate |
| Answer» B. Sodium Chloride | |
| 8. |
Which of the following salts will give an aqueous solution having pH of almost 7? |
| A. | Sodium Carbonate |
| B. | Ammonium Nitrate |
| C. | Potassium Chloride |
| D. | Calcium Chloride |
| Answer» D. Calcium Chloride | |
| 9. |
Which salt is used as a raw material for making a large number of useful chemicals in industry? |
| A. | Sodium Chloride |
| B. | Ammonium Hydroxide |
| C. | Ammonium Chloride |
| D. | Sodium Nitrate |
| Answer» B. Ammonium Hydroxide | |
| 10. |
The acidic nature and basic nature of some salt solutions can be explained on the basis of: |
| A. | Splitting of a salt compound |
| B. | Hydrolysis of salts |
| C. | Both A and B |
| D. | Only B |
| Answer» D. Only B | |
| 11. |
Name a gas which is used in making chloroform? |
| A. | Methane |
| B. | Propane |
| C. | Butane |
| D. | Acetylene |
| Answer» B. Propane | |
| 12. |
Name a gas which is used in the fermentation of sugar? |
| A. | Ammonia |
| B. | Butane |
| C. | Propane |
| D. | Carbon Dioxide |
| Answer» E. | |
| 13. |
Name a gas which is separated from the air by passing an electric current through water? |
| A. | Carbon Dioxide |
| B. | Oxygen |
| C. | Butane |
| D. | Nitrogen |
| Answer» C. Butane | |
| 14. |
Name a gas used in high speed photography? |
| A. | |
| B. | |
| C. | |
| D. | |
| Answer» C. | |
| 15. |
Name a tear gas which is used in riots? |
| A. | |
| B. | |
| C. | |
| D. | |
| Answer» D. | |
| 16. |
Name a gas used as rocket propellant and in welding also? |
| A. | Ether |
| B. | Neon |
| C. | Hydrogen |
| D. | Cyanogen |
| Answer» E. | |
| 17. |
Name a gas which is used in the manufacture of vanaspati ghee, alcohol and ammonia? |
| A. | Hydrogen |
| B. | Oxygen |
| C. | Propane |
| D. | Butane |
| Answer» B. Oxygen | |
| 18. |
Name a gas which is used in refrigeration and in fire extinguisher? |
| A. | Nitrogen |
| B. | Hydrogen |
| C. | Carbon Dioxide |
| D. | Methane |
| Answer» D. Methane | |
| 19. |
Name an inert diatomic gas which is neither combustible nor helps in combustion? |
| A. | Carbon Dioxide |
| B. | Hydrogen |
| C. | Nitrogen |
| D. | None of the above |
| Answer» D. None of the above | |
| 20. |
Name the gas which is found in abundance in earth in both combine and free state with other elements? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Hydrogen |
| D. | Sulphur |
| Answer» B. Nitrogen | |
| 21. |
The solution of one of the following compounds will conduct electricity. This compound is: |
| A. | CCl4 |
| B. | HCl |
| C. | CaCl2 |
| D. | CH3Cl |
| Answer» D. CH3Cl | |
| 22. |
What is the electronic configuration of calcium ion (Ca2+) |
| A. | 2,8 |
| B. | 2,8,2 |
| C. | 2,8,4 |
| D. | 2,8,8 |
| Answer» E. | |
| 23. |
Which of the following are electrovalent compounds? |
| A. | Copper Sulphate |
| B. | Calcium Nitrate |
| C. | Magnesium Oxide |
| D. | All of the above |
| Answer» E. | |
| 24. |
Name the ions present in Sodium Oxide compound? |
| A. | Sodium ions |
| B. | Oxide ions |
| C. | Both A and B |
| D. | Neither A nor B |
| Answer» D. Neither A nor B | |
| 25. |
Ionic compound are soluble in: |
| A. | Ether |
| B. | Alcohol |
| C. | Kerosene |
| D. | Water |
| Answer» E. | |
| 26. |
Which of the following compounds is not ionic in nature? |
| A. | Lithium Chloride |
| B. | Ammonium Chloride |
| C. | Calcium Chloride |
| D. | Carbon tetrachloride |
| Answer» E. | |
| 27. |
Which of the following property is not of ionic compound? |
| A. | Solubility in water |
| B. | High melting and boiling points |
| C. | Electrical conductivity in solid state |
| D. | Electrical conductivity in molten state |
| Answer» C. Electrical conductivity in solid state | |
| 28. |
The solution of one of the following compounds will conduct electricity. This compound is |
| A. | CCl4 |
| B. | HCl |
| C. | CaCl2 |
| D. | CH3Cl |
| Answer» D. CH3Cl | |
| 29. |
Which of the following statement is true about ionic compounds? |
| A. | Ionic compounds conduct electricity when dissolved in water. |
| B. | Ionic compounds are not soluble in water. |
| C. | Ionic compounds are crystalline solids. |
| D. | Only A and C |
| Answer» E. | |
| 30. |
The atomic number of four elements P, Q, R, S are 6, 8, 10 and 12 respectively. The two elements which can react to form ionic compounds are: |
| A. | P and S |
| B. | Q and R |
| C. | P and R |
| D. | Q and S |
| Answer» E. | |
| 31. |
Diffusion in liquids is an example of: |
| A. | Smell of perfume |
| B. | Smell of food |
| C. | Spreading of ink in water |
| D. | Fragrance of incense stick |
| Answer» D. Fragrance of incense stick | |
| 32. |
Name a technique which is used for separating two or more dissolved solids which are present in a solution in very small quantities? |
| A. | Distillation |
| B. | Centrifugation |
| C. | Crystallisation |
| D. | Chromatography |
| Answer» E. | |
| 33. |
By which technique salt is obtained from sea-water? |
| A. | Filtration |
| B. | Distillation |
| C. | Evaporation |
| D. | Chromatography |
| Answer» D. Chromatography | |
| 34. |
Which of the following is a property of diffusion? |
| A. | Slowest in liquids |
| B. | Fastest in gases |
| C. | Based on motion of particles |
| D. | All of the above |
| Answer» E. | |
| 35. |
The process in which heat is required to convert a liquid into the vapour state is known as: |
| A. | Evaporation |
| B. | Latent heat of Vaporisation |
| C. | Melting |
| D. | Condensation |
| Answer» C. Melting | |
| 36. |
By which apparatus a mixture of an immiscible liquid is separated? |
| A. | Burner |
| B. | Beaker |
| C. | Distillation Flask |
| D. | Separating Funnel |
| Answer» E. | |
| 37. |
For dryness why crystallisation is a better technique than evaporation? |
| A. | Decomposition of solid takes place. |
| B. | Impurities get removed. |
| C. | Solid gets charged. |
| D. | All of the above |
| Answer» C. Solid gets charged. | |
| 38. |
Which of the following is the property of Solid? |
| A. | Can be compressed |
| B. | Have definite shape |
| C. | Have low density |
| D. | Intermolecular force is less |
| Answer» C. Have low density | |
| 39. |
Particles of matter have following characteristics: |
| A. | They constantly move |
| B. | They attract each other |
| C. | They are very small |
| D. | All of the above |
| Answer» E. | |
| 40. |
Name the particles which make up matter? |
| A. | Non metals |
| B. | Metals |
| C. | Metalloids |
| D. | Atoms |
| Answer» E. | |
| 41. |
Name a metal which is used in making airplanes? |
| A. | Copper |
| B. | Zinc |
| C. | Iron |
| D. | Aluminium |
| Answer» E. | |
| 42. |
Arrange the following metal in the decreasing chemical activity series? (i) Potassium (ii) Magnesium (iii) Gold (iv) Iron |
| A. | (i), (ii), (iii) and (iv) |
| B. | (i), (iii), (iv) and (ii) |
| C. | (i), (ii), (iv) and (iii) |
| D. | (i), (iv), (ii) and (iii) |
| Answer» D. (i), (iv), (ii) and (iii) | |
| 43. |
Ringing bells in the temples are made up of: |
| A. | Non-Metals |
| B. | Metalloids |
| C. | Metals |
| D. | None of the above |
| Answer» D. None of the above | |
| 44. |
Name a metal oxide which is acidic and basic in nature? |
| A. | Calcium Oxide |
| B. | Iron Oxide |
| C. | Amphoteric Oxide |
| D. | Sulphur dioxide |
| Answer» D. Sulphur dioxide | |
| 45. |
Other than mercury which other metal is liquid at room temperature? |
| A. | Sodium |
| B. | Lithium |
| C. | Gallium |
| D. | Caesium |
| Answer» D. Caesium | |
| 46. |
Why Aluminium is used for making cooking utensils? |
| A. | It is good conductor of heat. |
| B. | It is sonorous |
| C. | It is malleable |
| D. | None of the above. |
| Answer» B. It is sonorous | |
| 47. |
Name the property of metal in which it can be drawn into thin wires? |
| A. | Sonorous |
| B. | Ductility |
| C. | Malleability |
| D. | Conductivity |
| Answer» C. Malleability | |
| 48. |
Which of the following metal can be cut down with the help of knife? |
| A. | Sodium |
| B. | Potassium |
| C. | Gallium |
| D. | All of the above |
| Answer» E. | |
| 49. |
Which of the following statement is not true about metals? |
| A. | Metals are heavy and produce sound when hit with an object. |
| B. | Mercury metal is solid at room temperature. |
| C. | Metals have high densities. |
| D. | Metals can be converted into thin sheets. |
| Answer» C. Metals have high densities. | |
| 50. |
At present how many elements are known to us? |
| A. | 118 |
| B. | 119 |
| C. | 120 |
| D. | 117 |
| Answer» B. 119 | |