1) Gases are compressible because of a. space between particles b. collision of particles c. movement of particles d. attraction force between particles
|
||||
2) Number of gases joined together to make PVC is a. 2 b. 3 c. 4 d. 5
|
||||
3) As compare to gases, liquids are a. incompressible b. compressible c. more compressible than liquids d. less compressible than liquids
|
||||
4) Bakelite is a good a. conductor b. insulator c. metal d. solid
|
||||
5) When gases are heated, they a. expand more than solids but less than liquids b. expand more than liquids but less than solids c. do not expand d. both b and c
|
||||
6) Meaning of the word "anhydrous" is a. with water b. without water c. with copper d. without copper
|
||||
7) The color of solid magnesium is a. dark grey b. silver grey c. black d. whitish silver
|
||||
8) Ammonia is a. green in color b. blue in color c. colorless d. brown in color
|
||||
9) When liquids are heated, they a. expand more than gases but less than solids b. expand more than solids but less than gases c. do not expand d. none of above
|
||||
10) What are the chemicals used in fireworks? a. copper chloride b. calcium chloride c. barium chloride d. all of above
|
||||
11) The least intermolecular forces are found in a. solids b. liquids c. gases d. fluids
|
||||
12) In electric field, "PVC" is used to make a. pipes b. wire cover c. tungsten wire d. switches
|
||||
13) The material which John Hyatt used for his artificial ivory, was a. complex b. chromatid c. celluloid d. diplex
|
||||
14) At the end of reaction, catalyst a. vanishes b. is used up c. remains unchanged d. resizes
|
||||
15) As compare to low density polythene, the high density polythene is a. weak b. strong c. rough d. soft
|
||||
16) The chemist who started plastic industry was an a. Chinese b. Indian c. American d. British
|
||||
17) Ethene is obtained from a. light oil b. coconut oil c. olive oil d. sunflower oil
|
||||
18) Two major requirements for preparation of ammonia are a. low temperature and high pressure b. low temperature and pressure c. high temperature and low pressure d. high temperature and pressure
|
||||
19) The melting point of ice is a. 0 °C b. 1 °C c. 100 °C d. 50 °C
|
||||
20) When heat is provided to particles of solids, they gain a. heat energy b. potential energy c. kinetic energy d. thermal energy
|