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. |
Plasma is present in majority in |
| A. | inter stellar space |
| B. | intermolecular space |
| C. | inter cellular space |
| D. | intra cellular space |
| Answer» B. intermolecular space | |
| 2. |
The reaction between N₂(g) and O₂(g) can occur |
| A. | at room temperature |
| B. | under high pressure |
| C. | only under storm lightening |
| D. | under very harsh conditions |
| Answer» E. | |
| 3. |
Which of these do not react with Oxygen? |
| A. | Mg(s) |
| B. | Ar(g) |
| C. | P(s) |
| D. | S(s) |
| Answer» C. P(s) | |
| 4. |
Joule Thomson effect was implied by scientist |
| A. | Linde |
| B. | Joule |
| C. | Dalton |
| D. | Boyle's law |
| Answer» B. Joule | |
| 5. |
When heated, the metal that burns to produce white flames in a jar of oxygen is |
| A. | Al(s) only |
| B. | Mg(s) only |
| C. | Na(s) |
| D. | Al(s)and Mg(s) |
| Answer» E. | |
| 6. |
The bond energy in triple covalent bond (≡) in nitrogen (N₂) is |
| A. | 1000 kJmol⁻¹ |
| B. | 2000 kJmol⁻¹ |
| C. | 3000 kJmol⁻¹ |
| D. | 400 kJmol⁻¹ |
| Answer» B. 2000 kJmol⁻¹ | |
| 7. |
Metal that reacts quickly with Cl₂ is |
| A. | Si(s) |
| B. | P(s) |
| C. | Ar(g) |
| D. | Mg(s) |
| Answer» E. | |
| 8. |
Real gases do not react as expected the |
| A. | ideal gas |
| B. | noble gas |
| C. | non-ideal gas |
| D. | inert gas |
| Answer» B. noble gas | |
| 9. |
For deep sea diving oxygen is usually mixed with |
| A. | He gas |
| B. | Nitrogen gas |
| C. | hydrogen |
| D. | argon gas |
| Answer» B. Nitrogen gas | |
| 10. |
Word 'iso' means |
| A. | different |
| B. | same |
| C. | conditional |
| D. | constant |
| Answer» C. conditional | |
| 11. |
Ionization of gas can be used to produce |
| A. | plasma |
| B. | solid |
| C. | liquid |
| D. | gas |
| Answer» B. solid | |
| 12. |
According to equation PV=nRT pressure of mixture of gases depend upon |
| A. | number of moles of gas |
| B. | collisions of gas |
| C. | units of gas |
| D. | inertness of gas |
| Answer» B. collisions of gas | |
| 13. |
Gases are usually composed of many small particles which are named as |
| A. | atoms |
| B. | molecules |
| C. | groups |
| D. | clusters |
| Answer» C. groups | |
| 14. |
Experimental description of graham's law produces dense white fumes of |
| A. | ammonium chloride |
| B. | ammonium hydroxide |
| C. | hydrochloric acid |
| D. | ammonia gas |
| Answer» C. hydrochloric acid | |
| 15. |
Plasma is used to conduct electricity in |
| A. | neon signs |
| B. | ammonia signs |
| C. | sulphur signs |
| D. | hydrogen signs |
| Answer» B. ammonia signs | |
| 16. |
Graph of gases move towards ideal at |
| A. | high temperature |
| B. | high pressure |
| C. | high volume |
| D. | density |
| Answer» B. high pressure | |
| 17. |
The volume that a gas occupies, depends upon its |
| A. | pressure only |
| B. | temperature only |
| C. | humidity |
| D. | pressure and temperature |
| Answer» E. | |
| 18. |
Plants become more susceptible to diseases and pests because |
| A. | of acids from the acid rain |
| B. | leaves becoming yellow due to leaching out of nitrogen |
| C. | waxy layer on leaves becoming damaged causing increased transpiration |
| D. | of floods |
| Answer» D. of floods | |
| 19. |
By gaining electrons (e⁻), Nitrogen (N) attempts to attain the nuclear configuration of |
| A. | Neon |
| B. | Krypton |
| C. | Xeon |
| D. | Radon |
| Answer» B. Krypton | |
| 20. |
Shape of gases is |
| A. | definite |
| B. | indefinite |
| C. | circle |
| D. | square |
| Answer» C. circle | |
| 21. |
State of matter which exists in a narrow temperature range is |
| A. | plasma |
| B. | liquid |
| C. | gas |
| D. | solid |
| Answer» C. gas | |
| 22. |
Critical temperature of ammonia is |
| A. | 405.6K |
| B. | 605k |
| C. | 404k |
| D. | 890K |
| Answer» B. 605k | |
| 23. |
In Linde's method heat of compression is removed in |
| A. | hot pipe |
| B. | water cooled pipe |
| C. | round pipe |
| D. | spiral pipe |
| Answer» C. round pipe | |
| 24. |
Molecules of liquids due to their motion possess |
| A. | potential energy |
| B. | kinetic energy |
| C. | heat energy |
| D. | thermal energy |
| Answer» C. heat energy | |
| 25. |
General gas constant is represented by |
| A. | B |
| B. | S |
| C. | K |
| D. | R |
| Answer» E. | |
| 26. |
According to standard units value of R is |
| A. | 0.0765 |
| B. | 0.082 |
| C. | 0.074 |
| D. | 0.087 |
| Answer» C. 0.074 | |
| 27. |
For Boyle's law if we plot graph between inverse of volume and pressure result is |
| A. | curve line |
| B. | straight line |
| C. | circular line |
| D. | elliptical |
| Answer» C. circular line | |
| 28. |
Compressed air in Linde's method is cooled by |
| A. | vacuum pump |
| B. | cool air |
| C. | ice |
| D. | water |
| Answer» C. ice | |
| 29. |
Magnetic fields create plasma which is known as |
| A. | stable state |
| B. | shifted state |
| C. | metastable state |
| D. | degenerated state |
| Answer» D. degenerated state | |
| 30. |
Melting points of states of matter depends upon strength of |
| A. | intermolecular forces |
| B. | volume |
| C. | molecules |
| D. | atoms |
| Answer» B. volume | |
| 31. |
'K' according to Boyle's law s equal to |
| A. | PT |
| B. | PV |
| C. | P/V |
| D. | P/T |
| Answer» C. P/V | |
| 32. |
English scientist who discovered plasma was |
| A. | William Crookes |
| B. | Wilson |
| C. | Watson |
| D. | Wauker |
| Answer» B. Wilson | |
| 33. |
Value of constant 'a' increases with increase in |
| A. | pressure |
| B. | volume |
| C. | intermolecular forces |
| D. | temperature |
| Answer» D. temperature | |
| 34. |
Expression for pressure of an ideal gas was deduced by |
| A. | Boyle |
| B. | Clausius |
| C. | Dalton |
| D. | Charles |
| Answer» C. Dalton | |
| 35. |
When air in Linde's method comes out of jet is |
| A. | expanded |
| B. | cooled |
| C. | heated |
| D. | deatomized |
| Answer» B. cooled | |
| 36. |
Fragrance of a flower spreads because of |
| A. | pressure |
| B. | effusion |
| C. | diffusion |
| D. | volume |
| Answer» D. volume | |
| 37. |
Sun is usually heated by |
| A. | nuclear fusion |
| B. | fission |
| C. | ions |
| D. | atoms |
| Answer» C. ions | |
| 38. |
Avogadro's law states equal volume of gases that contain same number of |
| A. | crystals |
| B. | molecules |
| C. | states |
| D. | pressure units |
| Answer» C. states | |
| 39. |
Plasma are used to drive particle accelerators and |
| A. | motors |
| B. | fans |
| C. | lasers |
| D. | cars |
| Answer» D. cars | |
| 40. |
In defining Charle's law quantity which remains constant is |
| A. | volume |
| B. | pressure |
| C. | temperature |
| D. | forces |
| Answer» C. temperature | |
| 41. |
Definite velocities are owned by molecules of gases which occur |
| A. | in chains |
| B. | in groups |
| C. | independently |
| D. | as entity |
| Answer» C. independently | |
| 42. |
Mole fraction has unit of |
| A. | gram |
| B. | moles |
| C. | power |
| D. | pressure |
| Answer» C. power | |
| 43. |
Pressure exerted by mixture of gases is equal to sum of pressure of each gas in case of |
| A. | reacting gas |
| B. | no reacting gas |
| C. | individualized gas |
| D. | inert gases |
| Answer» C. individualized gas | |
| 44. |
PV/nRT is called as |
| A. | pressure factor |
| B. | compressibility factor |
| C. | surface area |
| D. | volume factor |
| Answer» C. surface area | |
| 45. |
Pressure felt by sea diver at every 100 feet is approximately |
| A. | 2 atm |
| B. | 6 atm |
| C. | 3 atm |
| D. | 5atm |
| Answer» D. 5atm | |
| 46. |
Pressure is exerted by gases due to their |
| A. | circular motion |
| B. | linear motion |
| C. | random motion |
| D. | vibratory motion |
| Answer» D. vibratory motion | |
| 47. |
Gas which cannot be liquefied by Linde's method is |
| A. | helium |
| B. | Nitrogen gas |
| C. | oxygen |
| D. | carbon dioxide |
| Answer» B. Nitrogen gas | |
| 48. |
Law of distribution of velocities was given by |
| A. | Maxwell |
| B. | Clausius |
| C. | Bernoulii |
| D. | Dalton |
| Answer» B. Clausius | |
| 49. |
Value of compressibility factor for ideal gases is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 50. |
Plasma is an efficient source of |
| A. | cooling |
| B. | radiation |
| C. | energy |
| D. | color |
| Answer» C. energy | |