MCQOPTIONS
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MCQOPTIONS
This section includes 506 Mcqs, each offering curated multiple-choice questions to sharpen your Maharashtra CET knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When two crystalline solids exist in same form, phenomenon is called |
| A. | symmetry |
| B. | isomorphism |
| C. | habit |
| D. | anisotropy |
| Answer» C. habit | |
| 2. |
In NaCl crystal ion which is bigger in size is |
| A. | sodium ion |
| B. | chloride ion |
| C. | chlorine ion |
| D. | carbon ion |
| Answer» C. chlorine ion | |
| 3. |
Boiling point is temperature when vapor pressure of liquid becomes equal to |
| A. | external pressure |
| B. | internal pressure |
| C. | mercury pressure |
| D. | container pressure |
| Answer» B. internal pressure | |
| 4. |
When two opposite changes occurs at equal rate state is called |
| A. | special equilibrium |
| B. | dynamic equilibrium |
| C. | non equilibrium |
| D. | unique equilibrium |
| Answer» C. non equilibrium | |
| 5. |
Aniline has boiling point of |
| A. | 184.4 degree Celsius |
| B. | 100 degree Celsius |
| C. | 787.8 degree Celsius |
| D. | 178.2 degree Celsius |
| Answer» B. 100 degree Celsius | |
| 6. |
Combination way in crystalline solids affect the |
| A. | crystalline form |
| B. | color showing property |
| C. | shape and size |
| D. | all of these |
| Answer» B. color showing property | |
| 7. |
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 | |
| 8. |
Another name for unit cell dimensions is |
| A. | cell elements |
| B. | crystallographic elements |
| C. | side elements |
| D. | alpha elements |
| Answer» C. side elements | |
| 9. |
Molecule of diamond is also known as |
| A. | micro molecule |
| B. | macromolecule |
| C. | moderate |
| D. | small molecule |
| Answer» C. moderate | |
| 10. |
Bond distance in solid iodine as compared to gaseous iodine is |
| A. | greater |
| B. | lesser |
| C. | same |
| D. | small |
| Answer» B. lesser | |
| 11. |
Theory which was first given to explain metallic bond was |
| A. | electron pool theory |
| B. | proton pool theory |
| C. | neutron pool theory |
| D. | liquid pool theory |
| Answer» B. proton pool theory | |
| 12. |
Isomorphs differ in |
| A. | shape |
| B. | crystalline form |
| C. | chemical properties |
| D. | sizes |
| Answer» D. sizes | |
| 13. |
Boiling point is increased when external pressure is |
| A. | increased |
| B. | decreased |
| C. | stable |
| D. | descends |
| Answer» B. decreased | |
| 14. |
Molecule having covalent bond is |
| A. | NaCl |
| B. | HCl |
| C. | CaCl₂ |
| D. | KCl |
| Answer» C. CaCl₂ | |
| 15. |
Liquids crystals are |
| A. | isotropic |
| B. | anisotropic |
| C. | non isotropic |
| D. | non anisotropic |
| Answer» B. anisotropic | |
| 16. |
Scientist who discovered liquid crystals was |
| A. | Austrian botanist |
| B. | Austrian zoologist |
| C. | Austrian chemist |
| D. | Austrian microbiologist |
| Answer» B. Austrian zoologist | |
| 17. |
The change from liquid in to the gaseous state is known as |
| A. | vaporization |
| B. | condensation |
| C. | freezing |
| D. | sublimation |
| Answer» B. condensation | |
| 18. |
Maximum deviation in vapor pressure is shown by |
| A. | ethanol |
| B. | water |
| C. | ether |
| D. | ethylene glycol |
| Answer» E. | |
| 19. |
Ratio in crystals of sodium fluoride is |
| A. | 2:03 |
| B. | 1:01 |
| C. | 9:03 |
| D. | 1:09 |
| Answer» C. 9:03 | |
| 20. |
Compound which has highest molar heat of vaporization among hydrocarbons is |
| A. | methane |
| B. | ethane |
| C. | propane |
| D. | hexane |
| Answer» E. | |
| 21. |
Low volatility is a characteristic of |
| A. | ethanol |
| B. | spirit |
| C. | ionic crystal |
| D. | liquid |
| Answer» D. liquid | |
| 22. |
Hydrocarbons having longer chains have high |
| A. | boiling points |
| B. | movement |
| C. | speed |
| D. | deviation |
| Answer» B. movement | |
| 23. |
In normal liquids, molecules are arranged |
| A. | randomly |
| B. | in order |
| C. | in pattern |
| D. | hexagonally |
| Answer» B. in order | |
| 24. |
Artificially external pressure is increased by use of |
| A. | pressure cooker |
| B. | steam |
| C. | hot water bath |
| D. | incubator |
| Answer» B. steam | |
| 25. |
Hexagonal close packing is also known as |
| A. | AB AB packing |
| B. | ABC ABC packing |
| C. | CD cd packing |
| D. | EFG EFG packing |
| Answer» B. ABC ABC packing | |
| 26. |
Iodine boils at high temperature which in degree centigrade is about |
| A. | 190 |
| B. | 184.4 |
| C. | 189 |
| D. | 200 |
| Answer» C. 189 | |
| 27. |
Interstices which are formed by covering of metallic layers are of |
| A. | two types |
| B. | three types |
| C. | four types |
| D. | five types |
| Answer» B. three types | |
| 28. |
Crystalline forms are affected by |
| A. | chemical nature of atoms |
| B. | number of atoms |
| C. | physical properties |
| D. | surface area of crystal |
| Answer» C. physical properties | |
| 29. |
Boiling point of acetic acid in degree Celsius is |
| A. | 118.5 |
| B. | 150 |
| C. | 134 |
| D. | 167 |
| Answer» B. 150 | |
| 30. |
Allotropy is existence in more than one crystalline forms, is property of |
| A. | compound |
| B. | element of symmetry |
| C. | mixture |
| D. | gases |
| Answer» C. mixture | |
| 31. |
Molar heat of vaporization is high for |
| A. | non polar molecules |
| B. | polar molecules |
| C. | loose molecules |
| D. | gases |
| Answer» C. loose molecules | |
| 32. |
Angle of cleavage of crystalline solids is different for different |
| A. | solids |
| B. | liquids |
| C. | plasma |
| D. | gas |
| Answer» B. liquids | |
| 33. |
Number of chloride ions per unit cell of NaCl are |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» B. 5 | |
| 34. |
Molar heat of fusion is measured at |
| A. | boiling point |
| B. | melting point |
| C. | freezing point |
| D. | condensing point |
| Answer» C. freezing point | |
| 35. |
Diamonds are hard and |
| A. | do not conduct electricity |
| B. | bear high melting point |
| C. | bear high boiling point |
| D. | all of above |
| Answer» E. | |
| 36. |
Strength of dipole dipole forces affect some parameters which by nature are |
| A. | thermodynamic |
| B. | volume |
| C. | pressure |
| D. | light |
| Answer» B. volume | |
| 37. |
In covalent bonds electrons are shared |
| A. | independently |
| B. | by force |
| C. | mutually |
| D. | by temperature |
| Answer» D. by temperature | |
| 38. |
Quantitative measure of extent of electronic cloud distortion is known as |
| A. | ionicity |
| B. | density |
| C. | polarizability |
| D. | strength |
| Answer» D. strength | |
| 39. |
When positive end of molecule attracts negative end, these electrostatic forces are named as |
| A. | London dispersion forces |
| B. | dipole dipole forces |
| C. | weak forces |
| D. | gaseous forces |
| Answer» C. weak forces | |
| 40. |
1:1:3 number of atoms is a characteristic of |
| A. | rhombohedral crystals |
| B. | orthorhombic crystals |
| C. | cubic crystals |
| D. | circle crystals |
| Answer» B. orthorhombic crystals | |
| 41. |
Structure of ionic solids depends upon property of captions and anions which is |
| A. | radius ratio |
| B. | size |
| C. | force |
| D. | attraction |
| Answer» B. size | |
| 42. |
Lattice energy of -787 is a characteristic of |
| A. | NaCl |
| B. | LiCl |
| C. | KCl |
| D. | NaI |
| Answer» B. LiCl | |
| 43. |
Liquid crystals were first observed in |
| A. | 1888 |
| B. | 1999 |
| C. | 2006 |
| D. | 1788 |
| Answer» B. 1999 | |
| 44. |
Boiling point of water is decreased at mount Everest because it has external pressure of |
| A. | 323 torr |
| B. | 390 torr |
| C. | 373 torr |
| D. | 90 torr |
| Answer» B. 390 torr | |
| 45. |
Distance between opposite ions in NaCl crystals is |
| A. | 2.815 angstrom |
| B. | 4 angstrom |
| C. | 9angstrom |
| D. | 10 angstrom |
| Answer» B. 4 angstrom | |
| 46. |
When we measure molar heat of vaporization pressure taken is |
| A. | 5 atmosphere |
| B. | 3 atm |
| C. | 1 atm |
| D. | 9 atm |
| Answer» D. 9 atm | |
| 47. |
When the gas liquefies, the molecules lose kinetic energy and experience increase |
| A. | forces of attraction |
| B. | volume |
| C. | density |
| D. | pressure |
| Answer» B. volume | |
| 48. |
Sodium sulphate has attached water of crystallization which are usually |
| A. | 5 |
| B. | 6 |
| C. | 10 |
| D. | 8 |
| Answer» D. 8 | |
| 49. |
There are strong attractive forces between metal ions and delocalized electrons gives |
| A. | high tensile strength only |
| B. | hardness only |
| C. | color |
| D. | high tensile strength and hardness |
| Answer» E. | |
| 50. |
32.8 degree Celsius is a transition temperature for |
| A. | potassium sulphate |
| B. | sodium sulfate |
| C. | sodium carbonate |
| D. | potassium carbonate |
| Answer» C. sodium carbonate | |