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. |
Transition temperature for potassium nitrate is |
| A. | 13.2 degree Celsius |
| B. | 128 degree Celsius |
| C. | 78 degree Celsius |
| D. | 90 degree Celsius |
| Answer» C. 78 degree Celsius | |
| 2. |
Iodine has maximum value for change in vaporization whose value in kJ/mole is |
| A. | 22kJ/mole |
| B. | 90kJ/mole |
| C. | 24.3kJ/mole |
| D. | 67kJ/mole |
| Answer» B. 90kJ/mole | |
| 3. |
Crystalline solids can be recognized by help of their |
| A. | low boiling point |
| B. | sharp melting point |
| C. | color |
| D. | moderate melting point |
| Answer» C. color | |
| 4. |
Solids which in many cases are sublimed easily, are |
| A. | metals |
| B. | ionic |
| C. | molecular |
| D. | covalent |
| Answer» D. covalent | |
| 5. |
Different ions will split up by different compounds to given of |
| A. | same colored complexes |
| B. | different colored complexes |
| C. | same density complexes |
| D. | same temperature complexes |
| Answer» C. same density complexes | |
| 6. |
Pool or gas in metallic solids is formed by |
| A. | inner electrons |
| B. | valence electrons |
| C. | moderate electrons |
| D. | neutrons |
| Answer» C. moderate electrons | |
| 7. |
Electrical quantity of a crystalline solid is different in different directions which is |
| A. | carbon |
| B. | diamond |
| C. | graphite |
| D. | Sulphur |
| Answer» D. Sulphur | |
| 8. |
Property refractive index is |
| A. | anisotropic property |
| B. | color showing property |
| C. | virtual property |
| D. | chemical property |
| Answer» B. color showing property | |
| 9. |
Phenomenon in which a crystal exist in more than one forms is called |
| A. | isomorphism |
| B. | polymorphism |
| C. | habit of crystal |
| D. | symmetry |
| Answer» C. habit of crystal | |
| 10. |
Metallic bond theory which was given by Drude was extended by |
| A. | Drude |
| B. | Loren |
| C. | Edward |
| D. | E Eddison |
| Answer» C. Edward | |
| 11. |
Points which shows position of atoms in a crystal are called |
| A. | lattice points |
| B. | lattice lines |
| C. | lattice circles |
| D. | lattice arrangements |
| Answer» B. lattice lines | |
| 12. |
Equilibrium temperature for tin is |
| A. | 19 degree Celsius |
| B. | 13.2 degree Celsius |
| C. | 15 degree Celsius |
| D. | 31 degree Celsius |
| Answer» C. 15 degree Celsius | |
| 13. |
Length b in unit cell is along |
| A. | x axis |
| B. | b axis |
| C. | y axis |
| D. | z axis |
| Answer» D. z axis | |
| 14. |
One of non polar solvent is |
| A. | water |
| B. | normal saline |
| C. | benzene |
| D. | potassium chromate |
| Answer» D. potassium chromate | |
| 15. |
Copper makes isomorphs with |
| A. | gold |
| B. | silver |
| C. | sodium |
| D. | chlorine |
| Answer» C. sodium | |
| 16. |
Increase in boiling point indicates more |
| A. | repulsive forces |
| B. | weak forces |
| C. | attractive forces |
| D. | tetra force |
| Answer» D. tetra force | |
| 17. |
Liquid crystals share properties of crystals and |
| A. | anisotropic liquids |
| B. | crystalline liquids |
| C. | water |
| D. | isotropic liquids |
| Answer» E. | |
| 18. |
Avogadro's number can be calculated by use of volume and |
| A. | space between atoms |
| B. | height |
| C. | size |
| D. | shape |
| Answer» B. height | |
| 19. |
Fuel used in vacuum distillation is |
| A. | more |
| B. | moderate |
| C. | less |
| D. | not refined |
| Answer» D. not refined | |
| 20. |
The mixture of metal or metals with non-metals gives off an |
| A. | alloy |
| B. | allotrope |
| C. | isotope |
| D. | lattice |
| Answer» B. allotrope | |
| 21. |
One of angle in monoclinic crystal system is |
| A. | less than 90 degree |
| B. | greater than 90 degree |
| C. | less than30 degree |
| D. | less than 10 degree |
| Answer» C. less than30 degree | |
| 22. |
In polymorphism forms of compound are |
| A. | 1 |
| B. | more than 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 23. |
Mass of ionic solids is taken as |
| A. | molecular mass |
| B. | formula mass |
| C. | compound mass |
| D. | atomic mass |
| Answer» C. compound mass | |
| 24. |
If we heat a solid, the |
| A. | vibration will increase |
| B. | forces of attraction will increase |
| C. | solid changes into gas |
| D. | none of above |
| Answer» B. forces of attraction will increase | |
| 25. |
Overlapping which is present in diamond structure is |
| A. | sp3-sp3 |
| B. | sp2-sp3 |
| C. | sp2-sp2 |
| D. | sp-sp3 |
| Answer» B. sp2-sp3 | |
| 26. |
ABC ABC arrangement in metals is also called |
| A. | 123 123 arrangement |
| B. | 345 345 arrangement |
| C. | 678 678 arrangement |
| D. | 987 987 arrangement |
| Answer» B. 345 345 arrangement | |
| 27. |
White tin occurs in |
| A. | cubic form |
| B. | tetragonal form |
| C. | trigonal form |
| D. | hexagonal form |
| Answer» C. trigonal form | |
| 28. |
Amorphous solids have solid state properties, but they do not posses |
| A. | specific volume |
| B. | virtual shape maintenance |
| C. | orderly arrangement |
| D. | density |
| Answer» D. density | |
| 29. |
Closely spaced states in metallic bonds are called |
| A. | bands of energy |
| B. | array of energy |
| C. | lines of energy |
| D. | trees of energy |
| Answer» B. array of energy | |
| 30. |
Chromate crystals are usually |
| A. | cubic |
| B. | tetrahedral |
| C. | cuboidal |
| D. | needle like |
| Answer» C. cuboidal | |
| 31. |
Among halogens heat of vaporization is maximum for |
| A. | bromine |
| B. | chlorine |
| C. | iodine |
| D. | fluorine |
| Answer» D. fluorine | |
| 32. |
Molar heat of vaporization is measured for |
| A. | solids |
| B. | liquids |
| C. | gases |
| D. | plasma |
| Answer» C. gases | |
| 33. |
In a substitution reaction, ligands in a complex can be exchanged |
| A. | totally only |
| B. | partially only |
| C. | consecutively |
| D. | totally and partially |
| Answer» E. | |
| 34. |
Structure of nitrite is similar to |
| A. | carbonate |
| B. | Sulphur |
| C. | chlorine |
| D. | rhombohedral |
| Answer» B. Sulphur | |
| 35. |
Along with dipole forces another force present in molecular solids is |
| A. | London dispersion force |
| B. | van der Wal forces |
| C. | ionic forces |
| D. | covalent forces |
| Answer» C. ionic forces | |
| 36. |
Dynamic equilibrium is important for |
| A. | reversible reactions |
| B. | irreversible reactions |
| C. | spontaneous reaction |
| D. | non spontaneous reaction |
| Answer» B. irreversible reactions | |
| 37. |
When pressure is increased food is cooked in less |
| A. | time |
| B. | temperature |
| C. | volume |
| D. | pressure |
| Answer» B. temperature | |
| 38. |
Dipole dipole forces are as effective as covalent bond about |
| A. | 1 percent |
| B. | 2 percent |
| C. | 3 percent |
| D. | 5 percent |
| Answer» B. 2 percent | |
| 39. |
Atom which must be present in hydrogen bonding is |
| A. | hydrogen |
| B. | sodium |
| C. | calcium |
| D. | sulphur |
| Answer» B. sodium | |
| 40. |
2000 years ago, a statue of 33 meter was built in |
| A. | Rhodes (Greece) |
| B. | Rome |
| C. | Persia |
| D. | Spain |
| Answer» B. Rome | |
| 41. |
In rhombohedral system all angles are of |
| A. | unequal length |
| B. | equal length |
| C. | two have equal length |
| D. | four have equal length |
| Answer» C. two have equal length | |
| 42. |
Decomposition of compound which is avoided in vacuum distillation is |
| A. | water |
| B. | alcohol |
| C. | phenol |
| D. | glycerin |
| Answer» E. | |
| 43. |
Orthorhombic system is also known as |
| A. | monoclinic |
| B. | hexagonal |
| C. | rhombic |
| D. | triclinic |
| Answer» D. triclinic | |
| 44. |
Glycerin boils at 210 degree Celsius when pressure is |
| A. | 45 torr |
| B. | 76 torr |
| C. | 50 torr |
| D. | 45 torr |
| Answer» D. 45 torr | |
| 45. |
Atoms forming covalent bonds in layers are |
| A. | cadmium iodide |
| B. | aluminum nitride |
| C. | diamond |
| D. | silicon carbide |
| Answer» B. aluminum nitride | |
| 46. |
One of factors affecting strength of London dispersion forces is |
| A. | number of atoms |
| B. | shape of molecules |
| C. | color of molecules |
| D. | temperature |
| Answer» B. shape of molecules | |
| 47. |
Length c in unit cell is along |
| A. | x axis |
| B. | y axis |
| C. | z axis |
| D. | t axis |
| Answer» D. t axis | |
| 48. |
Element which shows allotropy is |
| A. | sodium chloride |
| B. | gold |
| C. | titanium |
| D. | phosphorus |
| Answer» E. | |
| 49. |
When boiling point is achieved heat is used to break |
| A. | intermolecular forces |
| B. | pressure |
| C. | volume |
| D. | density |
| Answer» B. pressure | |
| 50. |
If 10 percent urea is present in NaCl it will become |
| A. | needle like |
| B. | cubic |
| C. | oval |
| D. | round |
| Answer» B. cubic | |