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. |
Gravitational pull force is not dominant on |
| A. | Mass |
| B. | Weight |
| C. | Friction |
| D. | Speed |
| Answer» B. Weight | |
| 2. |
Which one of the following surface don't reflect light? |
| A. | Opaque |
| B. | Transparent |
| C. | All surfaces reflect light |
| D. | Luminous |
| Answer» D. Luminous | |
| 3. |
In NaCl, the oxidation number of Cl |
| A. | +1 |
| B. | +2 |
| C. | −2 |
| D. | −1 |
| Answer» E. | |
| 4. |
The door hinge is about 1.5 m away from the handle, and a boy applies a force of 4 N. The moment of force will be |
| A. | 2.66 N m |
| B. | 5.5 N m |
| C. | 2.5 N m |
| D. | 6 N m |
| Answer» E. | |
| 5. |
An object weighs 24 N on moon, its mass would be |
| A. | 16 kg |
| B. | 15 kg |
| C. | 2.4 kg |
| D. | 23.4 kg |
| Answer» C. 2.4 kg | |
| 6. |
The scientific name for glycine which is simplest amino acid is |
| A. | amino ethanoic acid |
| B. | amino acid |
| C. | amylase |
| D. | aminate |
| Answer» B. amino acid | |
| 7. |
Upon reaction of Cl |
| A. | not killing of bacteria and germs |
| B. | killing of bacteria and germs |
| C. | None of Above |
| D. | killing of insects |
| Answer» B. killing of bacteria and germs | |
| 8. |
If ethanol will be used in elimination reaction of Halogenoalkanes it will produce |
| A. | alkenes |
| B. | alkanes |
| C. | carbonyl |
| D. | ketone |
| Answer» B. alkanes | |
| 9. |
The two types of lenses are |
| A. | converging and diverging |
| B. | small and large |
| C. | living and non-living |
| D. | transpiring and respiring |
| Answer» B. small and large | |
| 10. |
The particles of gas are |
| A. | far apart |
| B. | randomly arranged |
| C. | All of Above |
| D. | freely moving |
| Answer» D. freely moving | |
| 11. |
The relative molecular mass of a substance can be found by using |
| A. | mass spectrometer |
| B. | relative spectrometer |
| C. | none |
| D. | both a and b |
| Answer» B. relative spectrometer | |
| 12. |
The shape of a water molecule is |
| A. | non-linear |
| B. | linear |
| C. | tetrahedron |
| D. | pyramidal |
| Answer» B. linear | |
| 13. |
Order of reaction can be predicted by knowing that rate determining step have what |
| A. | reactants |
| B. | intermediates |
| C. | all of them |
| D. | products |
| Answer» C. all of them | |
| 14. |
The liquid used in the U-tube is |
| A. | Lime |
| B. | Water |
| C. | Mercury |
| D. | Copper (II) Sulphate |
| Answer» D. Copper (II) Sulphate | |
| 15. |
Two optical isomers are formed from carbon atoms bonded to |
| A. | 2 atoms |
| B. | 4 atoms |
| C. | 3 atoms |
| D. | 1 atom |
| Answer» C. 3 atoms | |
| 16. |
The beam of electrons can be produced with the help of |
| A. | cathode-ray tube |
| B. | anode-ray tube |
| C. | none |
| D. | both a and b |
| Answer» B. anode-ray tube | |
| 17. |
The position of equilibrium will be left if value of Ka is |
| A. | low |
| B. | high |
| C. | constant |
| D. | same |
| Answer» B. high | |
| 18. |
Elements which are found on their own in nature as free elements are |
| A. | coal and gold |
| B. | gold and silver |
| C. | gold and mercury |
| D. | nitrogen and gold |
| Answer» E. | |
| 19. |
The number of proton, neutron and electron in sulfide ion is respectively |
| A. | 17,16 and 18 |
| B. | 16,17 and 18 |
| C. | 18,16 and 17 |
| D. | 18,17 and 16 |
| Answer» C. 18,16 and 17 | |
| 20. |
The strength of atom to attract electrons increases with the increase in |
| A. | molarities |
| B. | polarity |
| C. | All of Above |
| D. | electro negativity |
| Answer» E. | |
| 21. |
The taste of lemon is due to presence of |
| A. | acetic acid |
| B. | citric acid |
| C. | All of Above |
| D. | ethanoic acid |
| Answer» C. All of Above | |
| 22. |
The SI unit for heat is |
| A. | Pascals |
| B. | Joules |
| C. | Amperes |
| D. | Ohms |
| Answer» C. Amperes | |
| 23. |
The most reactive of all the non-metals in the periodic table is |
| A. | Cl |
| B. | I |
| C. | F |
| D. | Br |
| Answer» D. Br | |
| 24. |
If no force is applied to a moving object, it will stop due to |
| A. | backward force |
| B. | gravity |
| C. | Friction |
| D. | Magnetic force |
| Answer» D. Magnetic force | |
| 25. |
Thermocouple can measure temperature from |
| A. | −100 °C to 1000 °C |
| B. | −200 °C to 100 °C |
| C. | 200 °C to 2000 °C |
| D. | −200 °C to 1500 °C |
| Answer» E. | |
| 26. |
The shape of water molecule is |
| A. | non-linear V shape |
| B. | linear |
| C. | tetrahedral |
| D. | trigonal |
| Answer» B. linear | |
| 27. |
Kilns and furnaces are lined by magnesium oxide because of its high |
| A. | melting point |
| B. | strength |
| C. | acidic nature |
| D. | boiling point |
| Answer» B. strength | |
| 28. |
The alkanes whose one or more atoms are replaced by halogen atoms are called |
| A. | Halogenoalkanes |
| B. | halogens |
| C. | carbonyl |
| D. | Halogenoalkanes |
| Answer» B. halogens | |
| 29. |
Nitrogen gas is found in the periodic table in group |
| A. | VII |
| B. | V |
| C. | X |
| D. | VI |
| Answer» C. X | |
| 30. |
Noble gases can be liquefied at |
| A. | high temperatures |
| B. | low temperatures |
| C. | high bond energies |
| D. | low pressures |
| Answer» C. high bond energies | |
| 31. |
In condensation, which change of state takes place? |
| A. | Gas to Liquid |
| B. | Gas to Solid |
| C. | Liquid to Solid |
| D. | Liquid to Gas |
| Answer» B. Gas to Solid | |
| 32. |
The ions which are formed by the combination of two or more different atoms are called |
| A. | compound ions |
| B. | complex ions |
| C. | anions |
| D. | cations |
| Answer» B. complex ions | |
| 33. |
Due to presence of lone pair of electrons on nitrogen atom amines and ammonia acts as |
| A. | acids |
| B. | bases |
| C. | amphoteric |
| D. | alkalis |
| Answer» B. bases | |
| 34. |
The physical property of any reaction mixture is analyzed over a specific time period is |
| A. | analyzing |
| B. | sampling |
| C. | all of them |
| D. | continuous |
| Answer» E. | |
| 35. |
If an unmarked mercury thermometer has l |
| A. | 40 °C |
| B. | 20 °C |
| C. | 80 °C |
| D. | 60 °C |
| Answer» D. 60 °C | |
| 36. |
Phenols undergo nitration in concentrated nitric acid to produce |
| A. | dinitrophenol |
| B. | nitro phenol |
| C. | tetra phenol |
| D. | trinitriphenol |
| Answer» E. | |
| 37. |
In which of the following, the speed of sound is greatest? |
| A. | Liquid |
| B. | Air |
| C. | Vacuum |
| D. | Solid |
| Answer» E. | |
| 38. |
In a comparison with 's' block element the melting point of transition elements are |
| A. | lower |
| B. | higher |
| C. | constant |
| D. | same |
| Answer» C. constant | |
| 39. |
Sodium Stearate is main component of |
| A. | soap |
| B. | plastic |
| C. | all of them |
| D. | detergent |
| Answer» B. plastic | |
| 40. |
Materials which can retain their strength above 550 °C are known as |
| A. | refractories |
| B. | ceramics |
| C. | none |
| D. | both a and b |
| Answer» B. ceramics | |
| 41. |
The classes of amines include |
| A. | secondary amines |
| B. | primary amines |
| C. | all of them |
| D. | tertiary amines |
| Answer» D. tertiary amines | |
| 42. |
Particles in liquid are colliding more frequently due to their |
| A. | viscosity |
| B. | random movement |
| C. | All of Above |
| D. | density |
| Answer» C. All of Above | |
| 43. |
The lower molar mass of hydrocarbons have increased |
| A. | volatility |
| B. | polarity |
| C. | boiling point |
| D. | both a and b |
| Answer» B. polarity | |
| 44. |
A thermometer without values is used by a scientist to check the temperature of a chemical. The values of the thermometer are l |
| A. | 40 °C |
| B. | 20 °C |
| C. | 80 °C |
| D. | 60 °C |
| Answer» B. 20 °C | |
| 45. |
When the resistance of a conducting wire at ice point is 1.2 Ω and 11.2 Ω at steam point, and the resistance of wire is 2 Ω the room temperature would be |
| A. | 8 °C |
| B. | 2.5 °C |
| C. | 13 °C |
| D. | 7.5 °C |
| Answer» E. | |
| 46. |
The progress of reaction by transmitting ultraviolet radiation through sample is done in |
| A. | observation cell |
| B. | reaction vessel |
| C. | calorimeter |
| D. | dilatometer |
| Answer» B. reaction vessel | |
| 47. |
The precision of Vernier calipers is |
| A. | 1 cm |
| B. | 1 mm |
| C. | 0.1 cm |
| D. | 0.1 mm |
| Answer» E. | |
| 48. |
Hydrocarbons which contain ring of three or more carbon atoms are called |
| A. | cycloalkanes |
| B. | alkanes |
| C. | all of them |
| D. | aromatic compounds |
| Answer» B. alkanes | |
| 49. |
Which one of these amino acids is secondary amino acids? |
| A. | Pro |
| B. | Ala |
| C. | Try |
| D. | Gln |
| Answer» B. Ala | |
| 50. |
Sound waves travel at |
| A. | different speed in same mediums |
| B. | same speed in different mediums |
| C. | highest speed in vacuum |
| D. | different speed in different mediums |
| Answer» E. | |