MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 77 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What is dry ice? |
| A. | solidified form of Carbon dioxide |
| B. | frozen heavy water |
| C. | isotope of Hydrogen |
| D. | popular name of Benzene |
| Answer» B. frozen heavy water | |
| 52. |
Ethanoic acid is the main constituent of which of the following substances? |
| A. | Soap |
| B. | Vinegar |
| C. | Wine |
| D. | Curd |
| Answer» C. Wine | |
| 53. |
Rosalind Franklin contributed into which of the following major breakthroughs of science? |
| A. | Discovery of Virus |
| B. | Discovery of Uranium |
| C. | Discovery of DNA Double Helix |
| D. | Discovery of Photosynthesis |
| Answer» D. Discovery of Photosynthesis | |
| 54. |
Kimberley Process” is related to which among the following ? |
| A. | Gold |
| B. | Diamonds |
| C. | Semi Precious Stones |
| D. | Aluminium |
| Answer» C. Semi Precious Stones | |
| 55. |
Potassium permanganate is used to purify water. Which among the following properties of Potassium permanganate helps in this work? |
| A. | sterilizing |
| B. | oxidizing |
| C. | reducing |
| D. | leaching |
| Answer» C. reducing | |
| 56. |
Which of the following gas is used to prevent the chips from getting oxidised? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Helium |
| D. | Lithium |
| Answer» C. Helium | |
| 57. |
Which of the following are the uses of Calcium carbonate? |
| A. | as an antacid |
| B. | mild abrasive in tooth paste |
| C. | as a filler in cosmetics |
| D. | All of the above |
| Answer» E. | |
| 58. |
Which of the following is / are correct statements about unsaturated carbon compounds? They have either double or triple bonds between the carbon atoms They are more reactive than the saturated carbon compounds Select the correct option from the codes given below: |
| A. | Only 1 |
| B. | Only 2 |
| C. | Both 1 & 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 59. |
Which of the following drug is an antihistamine? |
| A. | Dimetapp |
| B. | Seldane |
| C. | Cetrizine |
| D. | All of the above |
| Answer» E. | |
| 60. |
Who among the following scientists had discovered Radium? |
| A. | Marie Sklodowska-Curie and Pierre Curie |
| B. | André-Louis Debierne |
| C. | Kasimir Fajans |
| D. | Oswald Helmuth Göhring |
| Answer» B. André-Louis Debierne | |
| 61. |
Calamine is an ore of which among the following? |
| A. | Zinc |
| B. | Copper |
| C. | Mercury |
| D. | Iron |
| Answer» B. Copper | |
| 62. |
What do we call the reactions in which heat is generated? |
| A. | Exothermic |
| B. | Endothermic |
| C. | Both a and b |
| D. | None |
| Answer» B. Endothermic | |
| 63. |
What is water gas? |
| A. | mixture of CO and H2 |
| B. | mixture of CO and H2O |
| C. | mixture of CO2 and H2 |
| D. | Carbon mono-oxide |
| Answer» B. mixture of CO and H2O | |
| 64. |
As per Faraday’s Laws of Electrolysis, the amount of chemical reaction which occurs at any electrode during electrolysis proportional to which of the following? |
| A. | the concentration of electrolyte |
| B. | length of the electrode |
| C. | quantity of electricity passed through the electrolyte |
| D. | All of the above |
| Answer» D. All of the above | |
| 65. |
Which of the following drugs is an antacid? |
| A. | Dimetapp |
| B. | Terfenadine |
| C. | Cimetidine |
| D. | All of the above |
| Answer» D. All of the above | |
| 66. |
What are the main constituents of LPG? |
| A. | Methane, Hexane, Ethane |
| B. | Methane, Butane, Propane |
| C. | Ethane, Pentane, Hexane |
| D. | Ethane, Methane, Pentane |
| Answer» C. Ethane, Pentane, Hexane | |
| 67. |
Which of the following was discovered in Milikan’s oil drop experiment? |
| A. | Charge on a proton |
| B. | Charge on an electron |
| C. | Charge to mass ratio of an electron |
| D. | Mass of a Hydrogen atom |
| Answer» C. Charge to mass ratio of an electron | |
| 68. |
What is the general trend for ionization enthalpies of alkali metals as we move down the group? |
| A. | it increases |
| B. | it decreases |
| C. | it is same for all |
| D. | None |
| Answer» C. it is same for all | |
| 69. |
Which of the following comprises a standard hydrogen electrode? |
| A. | a copper electrode coated with carbon black |
| B. | an iron electrode coated with platinum black |
| C. | a platinum electrode coated with platinum black |
| D. | a gold electrode coated with carbon black |
| Answer» D. a gold electrode coated with carbon black | |
| 70. |
In which of these waters synthetic detergents can be used? |
| A. | Hard water |
| B. | Soft water |
| C. | Both hard water and soft water |
| D. | None of the above |
| Answer» D. None of the above | |
| 71. |
Highest percentage of nitrogen is found in which among the following fertilizers among the given options? |
| A. | Calcium ammonium nitrate |
| B. | Ammonium nitrate |
| C. | Calcium nitrate |
| D. | Urea |
| Answer» E. | |
| 72. |
Which among the following is known as Quick Lime? |
| A. | CaO |
| B. | CaCO2 |
| C. | Ca(OH)2 |
| D. | CaCl2 |
| Answer» B. CaCO2 | |
| 73. |
What do we call the region of space around the nucleus where the probability of finding an electron is maximum? |
| A. | Shell |
| B. | sub-shell |
| C. | Orbital |
| D. | electron cloud |
| Answer» D. electron cloud | |
| 74. |
What is the general outer electron configuration of Group 13 elements? |
| A. | ns2 np2 |
| B. | ns2 |
| C. | ns2 np1 |
| D. | ns2 np3 |
| Answer» D. ns2 np3 | |
| 75. |
What can be the probable pH of Milk of Magnesia? |
| A. | 2 |
| B. | 5.5 |
| C. | 7 |
| D. | 10.5 |
| Answer» E. | |
| 76. |
Which of the following detergents represent the liquid dishwashing detergents? |
| A. | Anionic |
| B. | Cationic |
| C. | Non-ionic |
| D. | None of the above |
| Answer» D. None of the above | |
| 77. |
Which of the following is the essential element for batteries used in electric cars? |
| A. | Magnesium |
| B. | Lithium |
| C. | Sodium |
| D. | Bromine |
| Answer» C. Sodium | |