MCQOPTIONS
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MCQOPTIONS
This section includes 1315 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 551. |
Vinegar is __________ . |
| A. | diluted acetic acid |
| B. | glacial acetic acid |
| C. | glacial formic acid |
| D. | diluted formic acid |
| Answer» B. glacial acetic acid | |
| 552. |
Vinegar and Baking Soda together produce ____________. |
| A. | Copper |
| B. | Carbon Dioxide |
| C. | Copper Sulphate |
| D. | Magnesium Oxide |
| Answer» C. Copper Sulphate | |
| 553. |
Washing soda is |
| A. | sodium hydroxide |
| B. | sodium carbonate |
| C. | sodium bicorbonate |
| D. | Potassium chloride |
| Answer» C. sodium bicorbonate | |
| 554. |
Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of |
| A. | Open system |
| B. | Closed system |
| C. | Isobaric system |
| D. | Isothermal system |
| Answer» B. Closed system | |
| 555. |
Van der Waal's equation explains the behaviour of _____ |
| A. | Ideal gases |
| B. | Real gases |
| C. | Mixture of gases |
| D. | Diatomic gases |
| Answer» C. Mixture of gases | |
| 556. |
Variable valency is exhibited by .........._x005F_x000D_ |
| A. | Valence elements |
| B. | Transition element |
| C. | Group elements |
| D. | Alkaline elements |
| Answer» C. Group elements | |
| 557. |
Uranium found in Ladakh is an example of which type of resource? |
| A. | unnatural resources |
| B. | Actual resources |
| C. | Potential resources |
| D. | Biotic resources |
| Answer» D. Biotic resources | |
| 558. |
Uraninite is an ore/mineral of _______. |
| A. | Zinc |
| B. | Uranium |
| C. | Titanium |
| D. | Aluminium |
| Answer» C. Titanium | |
| 559. |
Valency of an element depends on which of the following?_x005F_x000D_ I. Number of losing electron_x005F_x000D_ II. Number of gaining electron_x005F_x000D_ III. Number of sharing electron_x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 560. |
Under which conditions are gases most soluble in water? |
| A. | low pressure and low temperature |
| B. | low pressure and high temperature |
| C. | high pressure and low temperature |
| D. | high pressure and high temperature |
| Answer» D. high pressure and high temperature | |
| 561. |
Triple point of water corresponds to |
| A. | 1 atm, 0°C |
| B. | 1 atm, 0.01°C |
| C. | 1 atm, 0 K |
| D. | 4.58 Torr, 0.01°C |
| Answer» E. | |
| 562. |
Two or more elements combine to form a |
| A. | atom |
| B. | valency |
| C. | compound |
| D. | radical |
| Answer» D. radical | |
| 563. |
Turquoise is an ore/mineral of |
| A. | Copper |
| B. | Manganese |
| C. | Mercury |
| D. | Tin |
| Answer» B. Manganese | |
| 564. |
Trinitrotoluene is |
| A. | used to melt metals |
| B. | used to fuse two metals |
| C. | used as an abrasive |
| D. | used as an explosive |
| Answer» E. | |
| 565. |
Trichloroacetaldehyde was subject to Cannizzaro's reaction by using NaOH. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is : |
| A. | Chloroform |
| B. | 2, 2, 2-Trichloroethanol |
| C. | Trichloromethanol |
| D. | 2, 2, 2-Trichloropropanol |
| Answer» C. Trichloromethanol | |
| 566. |
Tooth decay starts when the pH of the mouth is lower than |
| A. | 5.7 |
| B. | 5.5 |
| C. | 5.6 |
| D. | 5.4 |
| Answer» C. 5.6 | |
| 567. |
Through which conversion is energy released? |
| A. | CO2 and H2O to C6H12O6 and O2 |
| B. | NADP+ to NADPH |
| C. | ADP to ATP |
| D. | ATP to ADP |
| Answer» E. | |
| 568. |
There are two elements-calcium (atomic number 20) and argon (atomic number 18). The mass number of both the elements is 40. They are therefore known as |
| A. | isotones |
| B. | isochores |
| C. | isobars |
| D. | isotopes |
| Answer» D. isotopes | |
| 569. |
There are ............ metalloids in the modern periodic table. |
| A. | 5 |
| B. | 4 |
| C. | 7 |
| D. | 6 |
| Answer» E. | |
| 570. |
The upper part of the heterosphere is composed almost completely of which gas? |
| A. | Ozone |
| B. | Nitrogen |
| C. | Oxygen |
| D. | Hydrogen |
| Answer» E. | |
| 571. |
There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number? |
| A. | 22 |
| B. | 7 |
| C. | 37 |
| D. | 15 |
| Answer» D. 15 | |
| 572. |
The water molecule has a dipole with the negative portion |
| A. | localized on one of the hydrogens |
| B. | localized between the hydrogen atoms |
| C. | pointing toward the oxygen atom |
| D. | pointing from the oxygen through the hydrogen atoms |
| Answer» D. pointing from the oxygen through the hydrogen atoms | |
| 573. |
The volume of 10 g of gas X is 5.6 litre at NTP. What is the molecular weight of X? |
| A. | 40 |
| B. | 60 |
| C. | 50 |
| D. | 20 |
| Answer» B. 60 | |
| 574. |
The vast amount of sea weeds present in oceans may produce an endless source of_x005F_x000D_ |
| A. | Methane |
| B. | Ocean thermal energy |
| C. | Sea wave energy |
| D. | Nuclear energy |
| Answer» B. Ocean thermal energy | |
| 575. |
The tenth element in the Newland's periodic classification resembles the |
| A. | Fourth |
| B. | Ninth |
| C. | First |
| D. | Third |
| Answer» E. | |
| 576. |
The substances that are composed of to or more different elements in fixed proportion by mass are called |
| A. | mixture |
| B. | compound |
| C. | element |
| D. | None of these |
| Answer» C. element | |
| 577. |
The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its ___________. |
| A. | Crystallisation |
| B. | Crystallisation |
| C. | Evaporation |
| D. | Evaporation |
| Answer» C. Evaporation | |
| 578. |
The substances which have very low ignition temperature and can easily catch fire with a flame are called _____________ substances. |
| A. | hazardous |
| B. | perilous |
| C. | incombustible |
| D. | inflammable |
| Answer» E. | |
| 579. |
The series of processes by which nitrogen and its compounds are inter-converted in the environment and in living organisms is called _____ . |
| A. | Absorption of Nitrogen |
| B. | Ammonification |
| C. | Nitrogen Fixation |
| D. | Nitrogen Cycle |
| Answer» E. | |
| 580. |
The state of matter can be changed into another state by changing the |
| A. | Volume |
| B. | Density |
| C. | Shape |
| D. | Temperature |
| Answer» E. | |
| 581. |
The smell that we get when LPG cylinder leaks is due to the presence of |
| A. | Nitrogen peroxide |
| B. | Carbon monoxide |
| C. | Sulphur compound |
| D. | Carbon dioxide |
| Answer» D. Carbon dioxide | |
| 582. |
The strongest interactions between molecules of hydrogen chloride are |
| A. | dipole-dipole interactions |
| B. | hydrogen bonds |
| C. | covalent bonds |
| D. | ionic bonds |
| Answer» B. hydrogen bonds | |
| 583. |
The soaps used in shaving cream are |
| A. | Calcium soaps |
| B. | lead soaps |
| C. | soft soaps |
| D. | hard soaps |
| Answer» D. hard soaps | |
| 584. |
The residual attractive or repulsive forces between molecules or atomic groups that do not arise from a covalent bond, or ionic bonds is called _____ |
| A. | Neutral Bond |
| B. | Non Polar Bond |
| C. | Electro Valence bond |
| D. | Van der Walls bond |
| Answer» E. | |
| 585. |
The salt concentration (measured as salinity in parts per thousand), is _______ % in sea. |
| A. | 44105 |
| B. | 30-35 |
| C. | 40-50 |
| D. | 60-70 |
| Answer» C. 40-50 | |
| 586. |
The relationship between a cathode and an anode involves |
| A. | Electrons |
| B. | Neutrons |
| C. | Protons |
| D. | Diodes |
| Answer» B. Neutrons | |
| 587. |
The salt concentration (measured as salinity in parts per thousand), is greater than _______ % in hypersaline lagoons. |
| A. | 50 |
| B. | 100 |
| C. | 150 |
| D. | 200 |
| Answer» C. 150 | |
| 588. |
The reactivity of an atom arises from |
| A. | the existence of unpaired electrons in the valence shell |
| B. | the energy differences between the electron shells |
| C. | the sum of the potential energies of all the electron shells |
| D. | the average distance of the outermost electron shell from the nucleus |
| Answer» B. the energy differences between the electron shells | |
| 589. |
The reactions in which oxidation and reduction occur simultaneously are called _______. |
| A. | Feral reactions |
| B. | Redox reactions |
| C. | Demug reactions |
| D. | Kerol reactions |
| Answer» C. Demug reactions | |
| 590. |
The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________. |
| A. | Vinegar |
| B. | Ash |
| C. | Baking Soda |
| D. | Copper |
| Answer» E. | |
| 591. |
The property of metals wherein they can be beaten into thin sheets is called:_x005F_x000D_ |
| A. | expansion |
| B. | malleability |
| C. | ductility |
| D. | conduction |
| Answer» C. ductility | |
| 592. |
The properties of several unknown solids were measured. Choose the correct option._x005F_x000D_ Â _x005F_x000D_ _x005F_x000D_ Â _x005F_x000D_ |
| A. | A, C |
| B. | A, C, D |
| C. | B, D |
| D. | A, B, C, D |
| Answer» E. | |
| 593. |
The property of metals by which they can be beaten into thin sheets is called _______________. |
| A. | ductility |
| B. | malleability |
| C. | viscosity |
| D. | tensile strength |
| Answer» C. viscosity | |
| 594. |
The process of transferring of charge from a charged object to the earth is called ______________._x005F_x000D_ |
| A. | neutralisation |
| B. | negation |
| C. | terraforming |
| D. | earthing |
| Answer» E. | |
| 595. |
The process of reducing the milk fat globules size to allow them to stay evenly distributed in milk is called ____. |
| A. | Standardization |
| B. | Pasteurization |
| C. | Homogenization |
| D. | Fortification |
| Answer» D. Fortification | |
| 596. |
The process of depositing a layer of any desired metal on another material by means of electricity is called ___________. |
| A. | Electroplating |
| B. | Galvanisation |
| C. | Rusting |
| D. | Crystallisation |
| Answer» B. Galvanisation | |
| 597. |
The process that takes place in the atom bomb is |
| A. | nuclear fusion |
| B. | nuclear fission |
| C. | radioactive disintegration |
| D. | chemical decomposition |
| Answer» C. radioactive disintegration | |
| 598. |
The process of depositing a layer of zinc on iron is called ___________ |
| A. | Galvanisation |
| B. | Crystallisation |
| C. | Rusting |
| D. | Baking |
| Answer» B. Crystallisation | |
| 599. |
The polar ice-caps are made of ____________ water |
| A. | Saline |
| B. | Salt |
| C. | Sour |
| D. | Fresh |
| Answer» E. | |
| 600. |
The presence or absence of hydroxy group on which carbon atom of sugar differentiates RNA and DNA ? |
| A. | 4th |
| B. | 2nd |
| C. | 3rd |
| D. | 1st |
| Answer» C. 3rd | |