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. |
To explain dual nature of matter experiment was designed by |
| A. | Davisson |
| B. | Rutherford |
| C. | Bohr |
| D. | de Broglie |
| Answer» B. Rutherford | |
| 2. |
The energy change according to Bohr is given by |
| A. | quantum energy |
| B. | Planck's equation |
| C. | Rutherford equation |
| D. | Bohr's equation |
| Answer» C. Rutherford equation | |
| 3. |
The regional temperature differences with in an animal is obtained by |
| A. | vasodilatation |
| B. | vasocontriction |
| C. | both of them |
| D. | None of Above |
| Answer» D. None of Above | |
| 4. |
The arginine is split to form urea by the enzymatic activity of |
| A. | arginase |
| B. | ornithase |
| C. | caboxylate |
| D. | None of Above |
| Answer» B. ornithase | |
| 5. |
The skeletal muscles is attached to the bone by a bundle of collagen and non-elastic fibers called |
| A. | tendons |
| B. | filaments |
| C. | cartilage |
| D. | hoofs |
| Answer» B. filaments | |
| 6. |
The gradual osmotic flow from filtrate back into kidney as it moves down in loop of henel is via mechanism of |
| A. | counter current multiplier |
| B. | current multiplier |
| C. | counter multiplier |
| D. | current counter multiplier |
| Answer» B. current multiplier | |
| 7. |
Sulphur dioxide has molar heat of vaporization whose value in kJ/mole is |
| A. | 40.6kJ/mole |
| B. | 15.6kJ/mole |
| C. | 24.3kJ/mole |
| D. | 21kJ/mole |
| Answer» D. 21kJ/mole | |
| 8. |
In parallel layers of ionic solids the ions which are above one another have |
| A. | same charge |
| B. | opposite charge |
| C. | no charge |
| D. | small charge |
| Answer» C. no charge | |
| 9. |
The side of the manometer in which mercury rises faces the |
| A. | liquid |
| B. | atmosphere |
| C. | container |
| D. | none |
| Answer» C. container | |
| 10. |
The compound which was studied in 1888 was |
| A. | benzoate crystals |
| B. | sulphate crystals |
| C. | cholesteryl sulphate |
| D. | cholesteryl benzoate |
| Answer» E. | |
| 11. |
The belonging of valence electrons in a crystal in metallic bond is to |
| A. | ionic bond |
| B. | atomic solids |
| C. | whole crystal |
| D. | atom |
| Answer» D. atom | |
| 12. |
8 degree Celsius is a transition temperature for |
| A. | potassium sulphate |
| B. | sodium sulfate |
| C. | sodium carbonate |
| D. | potassium carbonate |
| Answer» C. sodium carbonate | |
| 13. |
The geometry of the ionic crystal of salt is similar to |
| A. | sugar |
| B. | ice |
| C. | cadmium |
| D. | CsF |
| Answer» E. | |
| 14. |
When molten crystalline solids are cooled rapidly particles do not have |
| A. | volume |
| B. | time for arrangement |
| C. | density |
| D. | volume |
| Answer» C. density | |
| 15. |
The force of attraction which is more stronger than dipole dipole forces is |
| A. | London dispersion forces |
| B. | Hydrogen bonding |
| C. | van der Waal forces |
| D. | inter molecular force |
| Answer» C. van der Waal forces | |
| 16. |
1kJ/mole is the value of enthalpy change for |
| A. | methane |
| B. | ethane |
| C. | propane |
| D. | pentane |
| Answer» C. propane | |
| 17. |
Iron and silver have crystals have shape which is |
| A. | cubic |
| B. | rhombic |
| C. | orthorhombic |
| D. | hexagonal |
| Answer» B. rhombic | |
| 18. |
The crystals of sodium nitrite are |
| A. | orthorhombic |
| B. | rhombohedral |
| C. | cubic |
| D. | circle |
| Answer» C. cubic | |
| 19. |
Ionic crystals usually cannot conduct electricity in |
| A. | solid state |
| B. | molten state |
| C. | liquid state |
| D. | none |
| Answer» B. molten state | |
| 20. |
Cubic close packing of metals is also known as |
| A. | hexagonal |
| B. | face centered cubic |
| C. | linear |
| D. | circular |
| Answer» C. linear | |
| 21. |
The exact position of atoms in molecular solids can be determined by |
| A. | microscope |
| B. | compound microscope |
| C. | X ray |
| D. | chromatography |
| Answer» D. chromatography | |
| 22. |
The crystals of magnesium oxide are |
| A. | rhombohedral |
| B. | circular |
| C. | octahedral |
| D. | cubic |
| Answer» E. | |
| 23. |
vapor pressure is measured by taking the difference in liquid pressure and |
| A. | mercury pressure |
| B. | glass pressure |
| C. | container pressure |
| D. | atmospheric pressure |
| Answer» E. | |
| 24. |
After conversion of Na |
| A. | 186pm to 95pm |
| B. | 185pm to 95pm |
| C. | 186pm to 96pm |
| D. | 187pm to 94pm |
| Answer» B. 185pm to 95pm | |
| 25. |
The lines which appear in absorption and emission spectrum are |
| A. | same |
| B. | different |
| C. | very different |
| D. | far apart |
| Answer» B. different | |
| 26. |
The chemical effect produced by cathode rays is that they are |
| A. | oxidizing |
| B. | anodizing |
| C. | bond forming |
| D. | reducing |
| Answer» E. | |
| 27. |
The element which has 1s |
| A. | Neon |
| B. | boron |
| C. | fluorine |
| D. | carbon |
| Answer» B. boron | |
| 28. |
Cathode rays are deflected usually towards the |
| A. | positive plate |
| B. | negative plate |
| C. | not deflected |
| D. | remains straight |
| Answer» B. negative plate | |
| 29. |
Molar heat of vaporization is high for |
| A. | non polar molecules |
| B. | polar molecules |
| C. | loose molecules |
| D. | gases |
| Answer» C. loose molecules | |
| 30. |
Between lengths a and b of unit cell the angle which exists is |
| A. | alpha |
| B. | beta |
| C. | gamma |
| D. | eeta |
| Answer» B. beta | |
| 31. |
The structure of nitrite is similar to |
| A. | carbonate |
| B. | Sulphur |
| C. | chlorine |
| D. | rhombohedral |
| Answer» B. Sulphur | |
| 32. |
When crystalline solids are turn into powder the thing which is not changed is |
| A. | shape |
| B. | form |
| C. | angles |
| D. | color |
| Answer» D. color | |
| 33. |
5 degree Celsius is a transition temperature for |
| A. | tin |
| B. | Sulphur |
| C. | sodium |
| D. | glucose |
| Answer» C. sodium | |
| 34. |
The property refractive index is |
| A. | anisotropic property |
| B. | color showing property |
| C. | virtual property |
| D. | chemical property |
| Answer» B. color showing property | |
| 35. |
Coefficient of thermal expansion is a property which is |
| A. | chemical property |
| B. | physical property |
| C. | virtual property |
| D. | solid property |
| Answer» C. virtual property | |
| 36. |
The overlapping which is present in diamond structure is |
| A. | sp3-sp3 |
| B. | sp2-sp3 |
| C. | sp2-sp2 |
| D. | sp-sp3 |
| Answer» B. sp2-sp3 | |
| 37. |
The size and shape of unit cell of crystal help us to measure |
| A. | qualitative aspect |
| B. | quantitative aspect |
| C. | surface area |
| D. | none |
| Answer» C. surface area | |
| 38. |
Vacuum distillation occurs at low |
| A. | pressure |
| B. | volume |
| C. | temperature |
| D. | potential energy |
| Answer» D. potential energy | |
| 39. |
Phase changes are usually |
| A. | endothermic |
| B. | exothermic |
| C. | high energy |
| D. | high pressure |
| Answer» B. exothermic | |
| 40. |
If we want to obtain crystals from liquid then we do |
| A. | fast cooling |
| B. | moderate cooling |
| C. | mixing |
| D. | slow cooling |
| Answer» E. | |
| 41. |
In a suitable temperature liquid crystals are part of |
| A. | room thermometers |
| B. | clinical thermometers |
| C. | ear thermometers |
| D. | none |
| Answer» B. clinical thermometers | |
| 42. |
Potassium sulphate and potassium chromate forms |
| A. | rhombohedral crystals |
| B. | orthorhombic crystals |
| C. | cubic crystals |
| D. | circle crystals |
| Answer» C. cubic crystals | |
| 43. |
The value of enthalpy change of vaporization for chlorine is |
| A. | 7kJ/mole |
| B. | 90kJ/mole |
| C. | 45kJ/mole |
| D. | 10kJ/mole |
| Answer» E. | |
| 44. |
Shape of carbonate crystal is |
| A. | circular |
| B. | triangular planar |
| C. | cubic |
| D. | needle like |
| Answer» C. cubic | |
| 45. |
Habit of crystal is actually its |
| A. | color |
| B. | size |
| C. | shape |
| D. | density |
| Answer» D. density | |
| 46. |
The solids in which there is no orderly arrangement are called |
| A. | crystalline solids |
| B. | amorphous solids |
| C. | simple solids |
| D. | compound solids |
| Answer» C. simple solids | |
| 47. |
To release the entrapped air in liquid in manometric method liquid is |
| A. | freezed |
| B. | melted |
| C. | boiled |
| D. | condensed |
| Answer» B. melted | |
| 48. |
6 kilojoules per mole is molar heat of vaporization for |
| A. | alcohol |
| B. | water |
| C. | Sulphur |
| D. | none |
| Answer» C. Sulphur | |
| 49. |
The space between two layers of metals is known as |
| A. | interstices |
| B. | holes |
| C. | window |
| D. | shuttle |
| Answer» B. holes | |
| 50. |
Lattice energy is decreased when size of anion is |
| A. | decreased |
| B. | increased |
| C. | remains same |
| D. | no change |
| Answer» C. remains same | |