MCQOPTIONS
Saved Bookmarks
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. |
2cos |
| A. | 1+ cosα |
| B. | 1- cosα |
| C. | 1 + sinα |
| D. | 1 - sinα |
| Answer» B. 1- cosα | |
| 2. |
2sin |
| A. | 1+cosα |
| B. | 1 - cosα |
| C. | 1 - sinα |
| D. | 1 + sinα |
| Answer» C. 1 - sinα | |
| 3. |
If a > 0, then the function ƒ(x) = a x |
| A. | maximum value |
| B. | minimum value |
| C. | constant value |
| D. | positive value |
| Answer» C. constant value | |
| 4. |
If the roots of x |
| A. | 25-05-2015 |
| B. | ±25/4 |
| C. | 25-04-2015 |
| D. | None of the Above |
| Answer» D. None of the Above | |
| 5. |
8.7.6 = |
| A. | 9ι/5ι |
| B. | 5ι/9ι |
| C. | 1 |
| D. | 3ι |
| Answer» B. 5ι/9ι | |
| 6. |
The roots of the quadratic equation 2x |
| A. | equal |
| B. | imaginary |
| C. | irrational |
| D. | real and unequal |
| Answer» E. | |
| 7. |
If the atomic mass of copper is 63.546, the mass percent of copper in Cu |
| A. | 0.8098 |
| B. | 0.7898 |
| C. | 0.8678 |
| D. | 0.8882 |
| Answer» E. | |
| 8. |
Sulphuric acid H |
| A. | non-electrolyte |
| B. | strong electrolyte |
| C. | natural acid |
| D. | weak electrolyte |
| Answer» C. natural acid | |
| 9. |
Copper sulphate CuSO |
| A. | Copper hydroxide |
| B. | Copper (s) |
| C. | all of these |
| D. | Copper oxide |
| Answer» E. | |
| 10. |
Sugar solution C |
| A. | non-electrolyte |
| B. | strong electrolyte |
| C. | None of Above |
| D. | weak electrolyte |
| Answer» B. strong electrolyte | |
| 11. |
Particles in solids have |
| A. | lesser energy |
| B. | least energy |
| C. | greatest distances |
| D. | greatest energy |
| Answer» C. greatest distances | |
| 12. |
The reaction of lead oxide PbO and H |
| A. | oxidation of Lead |
| B. | reduction of Lead |
| C. | formation of PbO |
| D. | formation of PbCl |
| E. | |
| Answer» B. reduction of Lead | |
| 13. |
Melting and boiling points are examples of |
| A. | volatility |
| B. | rigidity |
| C. | conductivity |
| D. | solubility |
| Answer» B. rigidity | |
| 14. |
If the nucleon and proton number of manganese is 24 and 12 respectively, the number of electrons and protons will be |
| A. | 12,1 2 |
| B. | 36,12 |
| C. | Both A and B |
| D. | None of These |
| Answer» B. 36,12 | |
| 15. |
The chemical formula for Caustic Potash is |
| A. | KOH |
| B. | NaOH |
| C. | Ca(OH) |
| D. | |
| E. | MgO |
| Answer» B. NaOH | |
| 16. |
The brightness of battery light depends on the |
| A. | difference in the reactivity series of two metals in the battery |
| B. | polarization |
| C. | all of these |
| D. | volts of bulb attached to the battery |
| Answer» B. polarization | |
| 17. |
The valency of all of these ions is +1, except |
| A. | Cu |
| B. | Ag |
| C. | Fe |
| D. | NH |
| E. | |
| Answer» D. NH | |
| 18. |
When dichromate (VI) ion becomes reduced to chromium (III) ion, a change of color occurs from |
| A. | purple to colorless |
| B. | purple to pink |
| C. | orange to green |
| D. | orange to purple |
| Answer» D. orange to purple | |
| 19. |
Other than O and C, the main elements of a brick wall includes |
| A. | Ca |
| B. | Si |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 20. |
Diamonds |
| A. | can conduct electricity |
| B. | can not conduct electricity |
| C. | is an oxide |
| D. | have metallic bonds |
| Answer» C. is an oxide | |
| 21. |
Non-metals in group VII are likely to form |
| A. | covalent bonds |
| B. | ionic bonds |
| C. | diatic bond |
| D. | metallic bonds |
| Answer» C. diatic bond | |
| 22. |
The charge on Sulphur can be |
| A. | 4 or 6 |
| B. | 2 or 4 |
| C. | 2 or 3 |
| D. | 3 or 5 |
| Answer» B. 2 or 4 | |
| 23. |
Which option is incorrect? Anions |
| A. | travel to anode during electrolysis |
| B. | are negatively charged |
| C. | along with a cation forms an ionic salt |
| D. | travel to cathode during electrolysis |
| Answer» E. | |
| 24. |
The melting point of water is |
| A. | −210 °C |
| B. | 0 °C |
| C. | None of Above |
| D. | −78 °C |
| Answer» C. None of Above | |
| 25. |
Methylated spirit is a form of |
| A. | gas |
| B. | liquid |
| C. | aqueous |
| D. | crystal |
| Answer» C. aqueous | |
| 26. |
After centrifugation, the sublimate |
| A. | remain suspended in the liquid |
| B. | dissolves completely |
| C. | depends upon the pH of sublimate |
| D. | settles at the bottom |
| Answer» E. | |
| 27. |
Rate of reaction can be calculated by dividing change in mass or volume by |
| A. | total mass |
| B. | time taken |
| C. | the temperature |
| D. | amount of volume |
| Answer» C. the temperature | |
| 28. |
The particles are farthest apart in |
| A. | liquids |
| B. | solids |
| C. | all of these |
| D. | gases |
| Answer» E. | |
| 29. |
Acidic oxides neutralize |
| A. | alkalis |
| B. | bases |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 30. |
Upon diffusion, crystal of potassium magnate forms a |
| A. | violet solution |
| B. | purple solution |
| C. | transparent solution |
| D. | red solution |
| Answer» C. transparent solution | |
| 31. |
In CuO and CO reaction |
| A. | CuO is being oxidized |
| B. | CO is being oxidized |
| C. | None of Above |
| D. | Both A and B |
| Answer» C. None of Above | |
| 32. |
Electrolysis can be useful for |
| A. | electrorefinning |
| B. | electroplating |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 33. |
Ammonia NH |
| A. | covalent bonds |
| B. | ionic bonds |
| C. | diatic bonds |
| D. | metallic bonds |
| Answer» B. ionic bonds | |
| 34. |
The duration of bright-bulb can be enhanced, if along with copper |
| A. | the acid is more dilute |
| B. | magnesium is used |
| C. | graphite |
| D. | zinc |
| Answer» E. | |
| 35. |
In gases, the particles are |
| A. | father apart |
| B. | very close together |
| C. | None of Above |
| D. | farthest apart |
| Answer» E. | |
| 36. |
Filtrate refers to the |
| A. | a solution which dissolves |
| B. | insoluble solid in the filtration |
| C. | a solution that passes through the filtrate funnel |
| D. | crystals |
| Answer» D. crystals | |
| 37. |
A conductor |
| A. | does not change while conducting electricity |
| B. | changes while conducting electricity |
| C. | can not operate at high pressures |
| D. | does not allow flow of electricity |
| Answer» B. changes while conducting electricity | |
| 38. |
Metal oxides and acids can be the reactants to form salts if |
| A. | the metals are at risk of sublimation |
| B. | the metals are transition |
| C. | all of these |
| D. | the metals themselves do not react with acids |
| Answer» E. | |
| 39. |
The valency of the carbonate ion CO |
| A. | -2 |
| B. | -1 |
| C. | -4 |
| D. | -3 |
| Answer» C. -4 | |
| 40. |
Battery is |
| A. | collection of cells |
| B. | 99.5% pure copper |
| C. | Both A and B |
| D. | None of These |
| Answer» B. 99.5% pure copper | |
| 41. |
Fermented liquor can be purified and separated through |
| A. | fractional distillation |
| B. | simple distillation |
| C. | centrifugation |
| D. | sublimation |
| Answer» B. simple distillation | |
| 42. |
Sodium carbonate Na |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| Answer» C. 4 | |
| 43. |
Easy to shape materials like ceramics are used as |
| A. | insulators |
| B. | conductors |
| C. | None of Above |
| D. | electrodes |
| Answer» B. conductors | |
| 44. |
Upon absorbing heat energy, the ionic crystal results into |
| A. | ionic solution of same compound |
| B. | other compounds |
| C. | water as a byproduct |
| D. | oxides of same compounds |
| Answer» B. other compounds | |
| 45. |
The reactivity series of metals is also called as the |
| A. | electrochemical series |
| B. | preferential series |
| C. | selective discharge series |
| D. | electrolytic series |
| Answer» B. preferential series | |
| 46. |
Upon adding sugar in hot drink, slow dissolution is of |
| A. | granulated sugar cubes dissolve slowly |
| B. | sugar cubes dissolve slowly |
| C. | both are false |
| D. | both are true |
| Answer» C. both are false | |
| 47. |
In a Redox reaction, |
| A. | reduction occurs |
| B. | oxidation occurs |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 48. |
Separating a liquid from a solution can be carried out through |
| A. | simple distillation |
| B. | simple filtration |
| C. | fractional distillation |
| D. | chromatography |
| Answer» B. simple filtration | |
| 49. |
Electroplating of chromium helps in the manufacturing of |
| A. | saucepans |
| B. | car bumpers |
| C. | watches |
| D. | cutlery |
| Answer» C. watches | |
| 50. |
If an acid reacts with an oxide, the product will include H |
| A. | an acid (l) |
| B. | a salt(s) |
| C. | a gas |
| D. | a base |
| Answer» C. a gas | |