MCQOPTIONS
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MCQOPTIONS
This section includes 437 Mcqs, each offering curated multiple-choice questions to sharpen your GENERAL SCIENCE knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What invisible force holds you onto the earth, so that you don't simply fall off? |
| A. | Gravity |
| B. | Magnetism |
| C. | Wind |
| D. | Speed |
| Answer» B. Magnetism | |
| 52. |
Of the following, which element is common to all acids |
| A. | Hydrogen |
| B. | Carbon |
| C. | Sulphur |
| D. | Oxygen |
| Answer» B. Carbon | |
| 53. |
The main constituents of Pearl are? |
| A. | Calcium oxide, ammonium chloride |
| B. | Ammonium sulphate, sodium carbonate |
| C. | Calcium carbonate, magnesium carbonate |
| D. | Argonite, chonchiolin |
| Answer» D. Argonite, chonchiolin | |
| 54. |
At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?1. It is possible to know the pedigree of livestock.2. It is possible to understand the causes of all human diseases.3. It is possible to develop disease-resistant animal breeds.Which of the statements given above is/are correct? |
| A. | 1 and 2 only |
| B. | 2 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 55. |
What happens when some charge is placed on a soap bubble? |
| A. | Its radius decreases |
| B. | Its radius increases |
| C. | The bubble collapses |
| D. | The bubble expands |
| Answer» C. The bubble collapses | |
| 56. |
Seawater (i.e. saltwater) freezes at: |
| A. | At a slightly higher temperature than fresh water |
| B. | At a slightly lower temperature than fresh water. |
| C. | The same temperature as fresh water. |
| D. | Seawater does not freeze. |
| Answer» C. The same temperature as fresh water. | |
| 57. |
The theory which advocates that living beings can arise only from other living beings is termed |
| A. | Bio-genesis |
| B. | Abiogenesis |
| C. | Catastrophism |
| D. | Cosmozoic |
| Answer» B. Abiogenesis | |
| 58. |
What is the unit for measuring the pitch or frequency of sound ? |
| A. | Hum |
| B. | Coulomb |
| C. | Decible |
| D. | Cycle |
| Answer» D. Cycle | |
| 59. |
The weight of an object will be minimum when it is placed at ? |
| A. | The north pole |
| B. | The south pole |
| C. | The equator |
| D. | The center of the earth |
| Answer» E. | |
| 60. |
Metal extracted from seawater |
| A. | Potassium |
| B. | Calcium |
| C. | Magnesium |
| D. | Sodium |
| Answer» D. Sodium | |
| 61. |
'Pencillin' which is used as an antibiotic is obtained from |
| A. | Bacteria |
| B. | Fungi |
| C. | Algae |
| D. | Lichens |
| Answer» C. Algae | |
| 62. |
Which of the following is not correctly matched ? |
| A. | Plaster of paris : calcium sulphate |
| B. | Galena : lead sulphide |
| C. | Green vitriol : copper sulphate |
| D. | Calomel : mercurous chloride |
| Answer» D. Calomel : mercurous chloride | |
| 63. |
Stainless steel is an alloy of? |
| A. | Iron, chromium and nickel |
| B. | Iron, carbon and nickel |
| C. | Iron and manganese |
| D. | Iron, chromium and zinc |
| Answer» B. Iron, carbon and nickel | |
| 64. |
Where does the cabbage store food? |
| A. | Fruit |
| B. | Stem |
| C. | Root |
| D. | Leaves |
| Answer» E. | |
| 65. |
Flywheel is an important part of a steam engine because it - |
| A. | Gives strength to the engine |
| B. | Decreases the moment of inertia |
| C. | Accelerates the speed of the engine |
| D. | Helps the engine in keeping the speed uniform |
| Answer» E. | |
| 66. |
Which form of phosphorus is used in safety metals? |
| A. | White phosphorus |
| B. | Black phosphorous |
| C. | Red phosphorus |
| D. | Yellow phosphorus |
| Answer» D. Yellow phosphorus | |
| 67. |
PVC is obtained by the polymerisation of? |
| A. | Vinyl chloride |
| B. | Acetylene |
| C. | Propane |
| D. | Styrene |
| Answer» B. Acetylene | |
| 68. |
The combustible material at the tip of a safety match stick is? |
| A. | Manganese dioxide |
| B. | Sulphur |
| C. | Antimony sulphide |
| D. | Phosphorus |
| Answer» D. Phosphorus | |
| 69. |
Electric fuse wire is made of alloys because alloys - |
| A. | Are economical |
| B. | Have low melting point |
| C. | Have high melting point |
| D. | Do not get heated easily |
| Answer» C. Have high melting point | |
| 70. |
Special 3-D photographs which have been taken with laser beams (and which make the objects look real) are called what? |
| A. | Holograms |
| B. | 3d special effects |
| C. | Portraits |
| D. | Dvd |
| Answer» B. 3d special effects | |
| 71. |
................mixtures are used for making a glass |
| A. | Quartz and mica |
| B. | Salt and quartz |
| C. | Sand and salt |
| D. | Sand and silicates |
| Answer» E. | |
| 72. |
The amount of water vapour in the air is called...? |
| A. | Snow |
| B. | Humidity |
| C. | Sunsafe factor |
| D. | Water cycle |
| Answer» C. Sunsafe factor | |
| 73. |
Tides are primarily a result of the____ ? |
| A. | Attraction of the moon |
| B. | Farrel's law |
| C. | Ocean currents |
| D. | Earth's pressure system |
| Answer» B. Farrel's law | |
| 74. |
Ozone Layer restricts from |
| A. | Infrared rays |
| B. | Radio waves |
| C. | Ultraviolet radiation |
| D. | X-rays and gamma rays |
| Answer» D. X-rays and gamma rays | |
| 75. |
Which is faster Light or Sound? |
| A. | Light |
| B. | Sound |
| C. | Both are same |
| D. | Can't be determined |
| Answer» B. Sound | |
| 76. |
Nobel Prize is established in? |
| A. | 1931 |
| B. | 1911 |
| C. | 1901 |
| D. | 1951 |
| Answer» D. 1951 | |
| 77. |
The age of most ancient geological formation is estimated by? |
| A. | Ra-si method |
| B. | C14 method |
| C. | Potassium-argon method |
| D. | Uranium-lead method |
| Answer» C. Potassium-argon method | |
| 78. |
Which of the following react to produce urea? |
| A. | Acetic acid + ammonia |
| B. | Carbon dioxide + ammonia |
| C. | Methane + carbon monoxide |
| D. | Ammonium chloride + calcium sulphae |
| Answer» C. Methane + carbon monoxide | |
| 79. |
Which variety of glass is heat resistant ? |
| A. | Pyrex glass |
| B. | Bottle glass |
| C. | Hard glass |
| D. | Flint glass |
| Answer» B. Bottle glass | |
| 80. |
The main constituent of biogas is - |
| A. | Butane |
| B. | Methane |
| C. | Hydrogen |
| D. | Acetylene |
| Answer» C. Hydrogen | |
| 81. |
What are soaps ? |
| A. | Sodium or potassium salts of heavier fatty acids |
| B. | Mixture of glycerol and alcoho |
| C. | Ester of heavy fatty acid |
| D. | Salts of silicates |
| Answer» B. Mixture of glycerol and alcoho | |
| 82. |
Cooking oil can be converted into vegetables ghee by the process of? |
| A. | Hydrogenation |
| B. | Crystallisation |
| C. | Oxidation |
| D. | Distillation |
| Answer» B. Crystallisation | |
| 83. |
Which of the following is a main Kharif crop? |
| A. | Rice |
| B. | Cotton |
| C. | Bajra |
| D. | Barley |
| Answer» E. | |
| 84. |
Which one of the following is the ore of iron? |
| A. | Bauxite |
| B. | Smaltite |
| C. | Haematite |
| D. | Magnetite |
| Answer» D. Magnetite | |
| 85. |
Potassium nitrate is used in? |
| A. | Fertiliser |
| B. | Medicine |
| C. | Salt |
| D. | Glass |
| Answer» E. | |
| 86. |
Lime water contains - |
| A. | Calcium chloride |
| B. | Sodium carbonate |
| C. | Calcium hydroxide |
| D. | Sodium hydroxide |
| Answer» D. Sodium hydroxide | |
| 87. |
Chemically ?speropolenin? is a / an? |
| A. | Carbohydrate |
| B. | Co-polymer of carotinoid and fatty acid |
| C. | Lactic acid |
| D. | Propene |
| Answer» C. Lactic acid | |
| 88. |
Washing soda is - |
| A. | Sodium chloride |
| B. | Calcium carbonate |
| C. | Sodium bicarbonate |
| D. | Hydrated sodium carbonate |
| Answer» E. | |
| 89. |
The two elements that are frequently used for making transistors are: |
| A. | Boron and aluminium |
| B. | Silicon and germanium |
| C. | Iridium and tungsten |
| D. | Niobium and columbium |
| Answer» C. Iridium and tungsten | |
| 90. |
Electric bulb filament is made of |
| A. | Copper |
| B. | Aluminum |
| C. | Lead |
| D. | Tungsten |
| Answer» E. | |
| 91. |
The term pH denotes the - |
| A. | Temperature of solution |
| B. | Ionic strength of solution |
| C. | Vapour pressure of solution |
| D. | Acidity or basicity of solution |
| Answer» E. | |
| 92. |
Diamond is an allotropic form of: |
| A. | Germanium |
| B. | Carbon |
| C. | Silicon |
| D. | Sulphur |
| Answer» C. Silicon | |
| 93. |
The intencity of Earthquakes is measured on |
| A. | Richter scale |
| B. | Secant scale |
| C. | Mercalli scale |
| D. | Beaufort scale |
| Answer» B. Secant scale | |
| 94. |
A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is |
| A. | O positive |
| B. | A positive |
| C. | B positive |
| D. | Cannot be determined on the basis of the given data |
| Answer» B. A positive | |
| 95. |
When a gas is turned into a liquid, the process is called |
| A. | Condensation |
| B. | Evaporation |
| C. | Deposition |
| D. | Sublimation |
| Answer» B. Evaporation | |
| 96. |
If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because |
| A. | The soil of rain forest is deficient in nutrients |
| B. | Propagules of the trees in a rain forest have poor viability |
| C. | The rain forest species are slow growing |
| D. | Exotic species invade the fertile soil of rain forest |
| Answer» B. Propagules of the trees in a rain forest have poor viability | |
| 97. |
The blue colour of the clear sky is due to |
| A. | Diffraction of light |
| B. | Dispersion of light |
| C. | Reflection of light |
| D. | Refraction of light |
| Answer» C. Reflection of light | |
| 98. |
Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate |
| A. | The distance between the sun and earth |
| B. | The depth of the ocean |
| C. | The radius of the earth |
| D. | The radius of the sun |
| Answer» D. The radius of the sun | |
| 99. |
What is the scientific name for washing soda? |
| A. | Sodium carbonate |
| B. | Sodium bicarbonate |
| C. | Calcium carbonate |
| D. | Calcium bicarbonate |
| Answer» B. Sodium bicarbonate | |
| 100. |
Which of the following has got more heat capacity? |
| A. | Iron piece |
| B. | Water |
| C. | Gold piece |
| D. | Benzene |
| Answer» C. Gold piece | |