MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Among period 3 elements the element which has higher electro negativity than others is |
| A. | argon |
| B. | chlorine |
| C. | silicon |
| D. | sulfuric acid |
| Answer» C. silicon | |
| 2. |
Which feature of the laboratory thermometer makes it sensitive? |
| A. | The small bulb containing a small amount of liquid |
| B. | The thin-walled glass bulb |
| C. | The relatively small size of the thermometer |
| D. | The fine as well as uniform bore of the capillary tube |
| Answer» E. | |
| 3. |
Coefficient of static friction is equal to |
| A. | limiting friction force (F) ⁄ normal reaction force (R) |
| B. | limiting friction force (F) × normal reaction force (R) |
| C. | None of the above |
| D. | normal reaction force (R) ⁄ limiting friction force (F) |
| Answer» B. limiting friction force (F) × normal reaction force (R) | |
| 4. |
Law relating to concentrations of substances present at equilibrium and to stoichiometric equation is known as |
| A. | Law of Cato |
| B. | Law of mass action |
| C. | none |
| D. | Law of Peter |
| Answer» C. none | |
| 5. |
The units of solubility depends upon number of type of |
| A. | atoms |
| B. | ion |
| C. | molecules |
| D. | moles |
| Answer» C. molecules | |
| 6. |
Vernier Calipers have an accuracy of |
| A. | 0.1 mm |
| B. | 0.1 cm |
| C. | None of the above |
| D. | 0.1 um |
| Answer» B. 0.1 cm | |
| 7. |
There is often difference in empirical and molecular formula of |
| A. | inorganic molecules |
| B. | ionic compounds |
| C. | none |
| D. | organic molecules |
| Answer» E. | |
| 8. |
Sufurtrioxide is obtained by oxidation of |
| A. | sulfur oxide |
| B. | sulfur |
| C. | sulfur dioxide |
| D. | sulfuric acid |
| Answer» D. sulfuric acid | |
| 9. |
Work done must have the same unit as |
| A. | Power |
| B. | Force |
| C. | Efficiency |
| D. | Energy |
| Answer» E. | |
| 10. |
Upon dissolving NO |
| A. | acidity of soil |
| B. | alkalinity of soil |
| C. | None of Above |
| D. | Neutralization of soil |
| Answer» B. alkalinity of soil | |
| 11. |
Teflon is trade name for |
| A. | ice-skates |
| B. | non-stick pan |
| C. | glass bowl |
| D. | wheelers |
| Answer» C. glass bowl | |
| 12. |
The changing or unconsistant speed is termed as |
| A. | average speed |
| B. | instantaneous speed |
| C. | variable speed |
| D. | uniform speed |
| Answer» D. uniform speed | |
| 13. |
In the Periodic table, the Alkaline earth metals are found in |
| A. | Period III |
| B. | Period II |
| C. | Group III |
| D. | Group II |
| Answer» E. | |
| 14. |
By passing electricity through electrochemical cells they can be |
| A. | charged |
| B. | recharged |
| C. | deployed |
| D. | discharged |
| Answer» C. deployed | |
| 15. |
The distance between the optical center and the focal point is termed as |
| A. | focal length |
| B. | converging length |
| C. | crossing length |
| D. | meeting length |
| Answer» B. converging length | |
| 16. |
The amount of energy which is needed to break a specific covalent bond is called |
| A. | bond energy |
| B. | bond dissociation energy |
| C. | All of Above |
| D. | bond enthalpy |
| Answer» D. bond enthalpy | |
| 17. |
Which of the following surfaces would better absorb the infrared radiations? |
| A. | Shiny and white |
| B. | Dull and white |
| C. | Shiny and black |
| D. | Dull and black |
| Answer» E. | |
| 18. |
The particular temperature on which a liquid boils is known as |
| A. | condensation point |
| B. | boiling point |
| C. | sublimation point |
| D. | melting point |
| Answer» C. sublimation point | |
| 19. |
Hydrogen chloride reacts with water to give off ions of hydrogen and chloride which are |
| A. | soluble |
| B. | insoluble |
| C. | non-polar |
| D. | polar |
| Answer» B. insoluble | |
| 20. |
After ionic salts come in contact with water they form bonds called |
| A. | ionic bonds |
| B. | ion-dipole bonds |
| C. | all of them |
| D. | co-ordinate bonds |
| Answer» C. all of them | |
| 21. |
Lone pair of electrons as compare to bond pair of electron creates electron charge cloud which is |
| A. | more concentrated |
| B. | less concentrated |
| C. | none |
| D. | transitional |
| Answer» B. less concentrated | |
| 22. |
In solid the particles are |
| A. | free to move |
| B. | closely packed |
| C. | far apart |
| D. | irregularly packed |
| Answer» C. far apart | |
| 23. |
The mean energy of particles will be increased when the sample is |
| A. | boiled |
| B. | heated |
| C. | solidify |
| D. | melted |
| Answer» C. solidify | |
| 24. |
Reactions with mechanism involving trimolecular step are |
| A. | rare |
| B. | common |
| C. | general |
| D. | profound |
| Answer» B. common | |
| 25. |
The virtual image undergoes a little inversion' is a false statement of plane mirror image. |
| A. | Wrong |
| B. | Right |
| C. | Neither right nor wrong |
| D. | May be right or may be wrong |
| Answer» B. Right | |
| 26. |
The particles which revolve around the nucleus are called |
| A. | electrons |
| B. | proton |
| C. | All of Above |
| D. | neutron |
| Answer» B. proton | |
| 27. |
Of the given noble gases, enthalpy change of vaporization is lowest in |
| A. | Ne |
| B. | He |
| C. | Kr |
| D. | Ar |
| Answer» C. Kr | |
| 28. |
The element which is never found completely pure in nature is |
| A. | copper |
| B. | iron |
| C. | hydrogen |
| D. | mercury |
| Answer» C. hydrogen | |
| 29. |
The solubility product is only applicable for |
| A. | insoluble salts |
| B. | soluble salts |
| C. | none |
| D. | sparingly soluble salts |
| Answer» E. | |
| 30. |
During catalytic process nitrogen oxides and carbon monoxide is adsorbed on |
| A. | reactant |
| B. | catalyst surface |
| C. | none |
| D. | products |
| Answer» C. none | |
| 31. |
A thermometer that is alcohol-in-glass thermometer has l |
| A. | −20 °C |
| B. | −10 °C |
| C. | −40 °C |
| D. | −30 °C |
| Answer» D. −30 °C | |
| 32. |
Alcohols reacts with oxygen to form |
| A. | carbondioxide |
| B. | water |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 33. |
The proportion of successful collision increase with the increase in |
| A. | solvent |
| B. | solute |
| C. | temperature |
| D. | reactant |
| Answer» D. reactant | |
| 34. |
Bond energy can influence a compound's |
| A. | reactivity |
| B. | polarity |
| C. | none |
| D. | electro negativity |
| Answer» B. polarity | |
| 35. |
A covalently bond molecule's shape and bond angles rely on |
| A. | number of lone pair |
| B. | number of pair of electrons |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 36. |
Fluorine reacts with noble gases to form |
| A. | xenon |
| B. | krypton |
| C. | all of them |
| D. | radon |
| Answer» D. radon | |
| 37. |
The resistance of a metal wire at ice point is 800 Ω and 810 Ω at steam point, and the resistance of wire is 803 Ω the room temperature would be |
| A. | 20 °C |
| B. | 10 °C |
| C. | 40 °C |
| D. | 30 °C |
| Answer» E. | |
| 38. |
Gold has the melting point of |
| A. | 1033 °C |
| B. | 1020 °C |
| C. | 1067 °C |
| D. | 1054 °C |
| Answer» D. 1054 °C | |
| 39. |
The by-products of reaction MgCl |
| A. | Mg(OH) |
| B. | (s) |
| C. | MgO(s) |
| D. | None of Above |
| E. | both of these |
| Answer» E. both of these | |
| 40. |
The name given to sub-shells are s-sharp, p-principal and d for |
| A. | diffuse |
| B. | different |
| C. | difficult |
| D. | dense |
| Answer» B. different | |
| 41. |
The particularly most important group which is found in most organic compounds is |
| A. | aldehydes |
| B. | benzene ring |
| C. | carboxylic |
| D. | ketone |
| Answer» C. carboxylic | |
| 42. |
The study of rate of chemical reactions is called as |
| A. | reaction kinetics |
| B. | reaction rate |
| C. | none |
| D. | both a and b |
| Answer» B. reaction rate | |
| 43. |
The two quantities that make up moment of force are |
| A. | force and perpendicular distance from the line of action |
| B. | force and perpendicular distance from the line of pivot |
| C. | force and length of pivot from the bottom |
| D. | force and perpendicular distance from the line of pivot to the action of force |
| Answer» E. | |
| 44. |
pH of weak acid can be calculated by knowing |
| A. | value of Ka |
| B. | concentration of acid |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 45. |
If alkane is supplied with plenty of oxygen it ll undergo |
| A. | substitution |
| B. | complete combustion |
| C. | hydrolysis |
| D. | addition |
| Answer» C. hydrolysis | |
| 46. |
The oxides which are used to treat indigestion and relieve pain |
| A. | magnesium hydroxide |
| B. | magnesium oxide |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 47. |
The standard enthalpy change of combustion occurs when one mole of substance is burnt in excess |
| A. | oxygen |
| B. | nitrogen |
| C. | helium |
| D. | carbon dioxide |
| Answer» B. nitrogen | |
| 48. |
The thermal energy can be re-converted into potential or kinetic energy'. The statement is |
| A. | False |
| B. | True |
| C. | Both A and B |
| D. | Neutral |
| Answer» B. True | |
| 49. |
The value of lattice energy is affected by |
| A. | charge of ions |
| B. | size of ions |
| C. | none |
| D. | both a and b |
| Answer» E. | |
| 50. |
Which of the given limes are used by farmers to raise the pH of the soil? |
| A. | Fresh lime |
| B. | Limestone |
| C. | Slaked Lime |
| D. | Lime |
| Answer» D. Lime | |