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.
| 151. |
NaI has value of lattice energy in kilo joule per mole which is |
| A. | −690 |
| B. | 980 |
| C. | −500 |
| D. | 800 |
| Answer» B. 980 | |
| 152. |
The metal which can be melted even by the warmth of human palm is |
| A. | gallium |
| B. | indium |
| C. | aluminum |
| D. | tungsten |
| Answer» B. indium | |
| 153. |
Polymorphs have identical |
| A. | physical properties |
| B. | chemical properties |
| C. | virtual properties |
| D. | pseudo properties |
| Answer» C. virtual properties | |
| 154. |
In liquid crystals, temperature affect the |
| A. | magnetic field |
| B. | electric field |
| C. | neutron field |
| D. | electromagnetic field |
| Answer» E. | |
| 155. |
To break ionic solids we need |
| A. | high energy |
| B. | low energy |
| C. | moderate energy |
| D. | shear |
| Answer» B. low energy | |
| 156. |
Diamond is a crystalline cubic form of |
| A. | Sulphur |
| B. | carbon |
| C. | silicon |
| D. | gold |
| Answer» C. silicon | |
| 157. |
In calcium carbonate orthorhombic forms polymorph with |
| A. | rhombohedral |
| B. | cubic |
| C. | trigonal |
| D. | monoclinic |
| Answer» D. monoclinic | |
| 158. |
Shape of crystals of graphite is |
| A. | cubic |
| B. | monoclinic |
| C. | orthorhombic |
| D. | hexagonal |
| Answer» E. | |
| 159. |
Vacuum distillation occurs at low |
| A. | pressure |
| B. | volume |
| C. | temperature |
| D. | potential energy |
| Answer» D. potential energy | |
| 160. |
In hexagonal crystal system angle formed is of |
| A. | 60 degree |
| B. | 100 degree |
| C. | 120 degree |
| D. | 30 degree |
| Answer» D. 30 degree | |
| 161. |
Dipole-dipole are forces are weakest in |
| A. | gases |
| B. | liquids |
| C. | solids |
| D. | plasma |
| Answer» B. liquids | |
| 162. |
Ions in a crystal lattice are arranged in |
| A. | line |
| B. | alternate manner |
| C. | diagonal manner |
| D. | sides |
| Answer» D. sides | |
| 163. |
Polarizability of fluorine is less than |
| A. | iodine |
| B. | gases |
| C. | radioactive elements |
| D. | neutrons |
| Answer» B. gases | |
| 164. |
Pure aluminum (Al) is |
| A. | soft |
| B. | ductile |
| C. | high electrical and thermal conductivity |
| D. | all of above |
| Answer» E. | |
| 165. |
Shape of crystals of ammonium bromide is |
| A. | tetragonal |
| B. | cubic |
| C. | monoclinic |
| D. | rhombic |
| Answer» B. cubic | |
| 166. |
Liquid crystals have few properties of |
| A. | nitrogen |
| B. | gases |
| C. | air |
| D. | crystals |
| Answer» E. | |
| 167. |
Symmetry of a crystalline solid can be taken along |
| A. | axis |
| B. | sides |
| C. | circle |
| D. | oval |
| Answer» B. sides | |
| 168. |
Boiling temperature is increased in |
| A. | open vessel |
| B. | pressure container |
| C. | thermometer |
| D. | steel container |
| Answer» C. thermometer | |
| 169. |
Occasionally conductivity of metals decrease with increase in temperature because of movement of |
| A. | positive ions |
| B. | electrons |
| C. | protons |
| D. | nucleus |
| Answer» B. electrons | |
| 170. |
Fluorine has low value of molar heat of vaporization which is |
| A. | 40.6kJ/mole |
| B. | 5.9kJ/mole |
| C. | 24.3kJ/mole |
| D. | 21kJ/mole |
| Answer» C. 24.3kJ/mole | |
| 171. |
Another name for covalent solids is |
| A. | molecular solids |
| B. | atomic solids |
| C. | element solids |
| D. | compound solids |
| Answer» C. element solids | |
| 172. |
1:1:4 is a characteristic of |
| A. | zinc sulphate |
| B. | sodium chloride |
| C. | Sulphur |
| D. | sugar |
| Answer» B. sodium chloride | |
| 173. |
Vacuum distillation avoids |
| A. | boiling |
| B. | decomposition |
| C. | energy |
| D. | heat |
| Answer» C. energy | |
| 174. |
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 | |
| 175. |
Geometry of ionic crystal of salt is similar to |
| A. | sugar |
| B. | ice |
| C. | cadmium |
| D. | CsF |
| Answer» E. | |
| 176. |
Crystalline form does not depend upon |
| A. | chemical nature of atoms |
| B. | physical nature of atoms |
| C. | total number of atoms |
| D. | combination of atoms |
| Answer» B. physical nature of atoms | |
| 177. |
Number of chloride ions occupying NaCl crystal are |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 8 |
| Answer» E. | |
| 178. |
Symmetry is measured at |
| A. | 80 degree |
| B. | 90 degree |
| C. | 60 degree |
| D. | 360 degree |
| Answer» E. | |
| 179. |
Each carbon atom forms four covalent bonds with other carbon atoms arranging them tetrahedral in |
| A. | graphite |
| B. | diamond |
| C. | silicon |
| D. | brass |
| Answer» C. silicon | |
| 180. |
Solid which can be molded and blown into different shapes is |
| A. | salt |
| B. | sugar |
| C. | glass |
| D. | diamond |
| Answer» D. diamond | |
| 181. |
Amorphous word has meaning of |
| A. | shaped |
| B. | shapeless |
| C. | circular |
| D. | oval |
| Answer» C. circular | |
| 182. |
In structure of diamond hybridization present in tetrahedron is |
| A. | sp |
| B. | sp2 |
| C. | sp3 |
| D. | sp4 |
| Answer» D. sp4 | |
| 183. |
Compound or element having cubic crystals is |
| A. | iodine |
| B. | diamond |
| C. | tin |
| D. | sugar |
| Answer» C. tin | |
| 184. |
Ionic crystals which releases lattice energy are obtained from |
| A. | solid ions |
| B. | liquid ions |
| C. | gaseous ions |
| D. | plasma ions |
| Answer» D. plasma ions | |
| 185. |
Crystal lattice is also known as |
| A. | lattice triangle |
| B. | space lattice |
| C. | lattice line |
| D. | lattice array |
| Answer» C. lattice line | |
| 186. |
In a unit cell of common salt units of NaCl are |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» C. 5 | |
| 187. |
Acetone in units of degree Celsius has boiling point of |
| A. | 48 |
| B. | 20 |
| C. | 56 |
| D. | 39 |
| Answer» D. 39 | |
| 188. |
Borax forms |
| A. | rhombic crystals |
| B. | cubic crystals |
| C. | monoclinic crystals |
| D. | hexagonal crystals |
| Answer» D. hexagonal crystals | |
| 189. |
Example of giant molecule having covalent bond is |
| A. | aluminium nitride |
| B. | graphite |
| C. | boron nitride |
| D. | cadmium iodide |
| Answer» B. graphite | |
| 190. |
Ionic reactions are usually performed in |
| A. | non polar solvents |
| B. | polar solvents |
| C. | volatile solvents |
| D. | alcohol |
| Answer» C. volatile solvents | |
| 191. |
The mixture of 70% copper and 30% zinc is an alloy called |
| A. | brass |
| B. | aluminum |
| C. | gold |
| D. | silver |
| Answer» B. aluminum | |
| 192. |
The vapor pressure is directly proportional to the temperature because of |
| A. | more kinetic energy only |
| B. | faster particle movement only |
| C. | more potential energy |
| D. | more kinetic energy and faster particle movement |
| Answer» E. | |
| 193. |
Spacing between atoms can be find by use of |
| A. | screw gauge |
| B. | microscope |
| C. | X ray |
| D. | chromatography |
| Answer» D. chromatography | |
| 194. |
Packing of metals can be understood by taking example of packing of |
| A. | grapes |
| B. | squares |
| C. | balls |
| D. | pencils |
| Answer» D. pencils | |
| 195. |
Noble gases are actually |
| A. | molecular solids |
| B. | metallic solids |
| C. | ionic solids |
| D. | covalent solids |
| Answer» B. metallic solids | |
| 196. |
In thermal conductivity heat is transferred in metals by their |
| A. | potential energy |
| B. | collisions |
| C. | size |
| D. | static nature |
| Answer» C. size | |
| 197. |
When structure of metal changes it does not undergo |
| A. | movement |
| B. | molding |
| C. | change in shape |
| D. | fracturing |
| Answer» E. | |
| 198. |
On basis of arrangement of molecules solids have |
| A. | three types |
| B. | two types |
| C. | five types |
| D. | six types |
| Answer» C. five types | |
| 199. |
Shape of chromate is similar to |
| A. | Sulphur |
| B. | nitrate |
| C. | carbonate |
| D. | sulphate |
| Answer» E. | |
| 200. |
When we study metallic bond with respect to valence bond theory, it is considered having |
| A. | ionic character |
| B. | covalent character |
| C. | neutral character |
| D. | molecular character |
| Answer» C. neutral character | |