Chemistry Fsc Part 1 Online Test With Answers

image
image
image

Chemistry Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Cathode rays strike alumina and produce a ..........colour. Red Blue Yellow Green
2 The molecules of CO2 i dry ice form the. Ionic crystals Molecular crystals Amorphous Covalent crystals
3 Diamond is bad conductor because. It has a tight structure It has a high density It is transparent to light There are o free electros present in the crystal of diamond to conduct electricity.
4 The lightest value of lattice energy is for which one of these ionic compounds. NaI NaF NaBr NaCl
5 Ionic solid are characterized by. Low melting point Good conductivity in solid state High vapours pressure solubility in polar solvent
6 Crystal to diamond is. Ionic Molecular Covalent Metallic
7 Allotropy is the property of. Compound Element Atom Mixtuer
8 Which is pseudo solid CaF2 Glass NaCl CaCl2
9 NH3 shows a maximum boiling point among the hydrides of V-A group elements due to. Very small size of nitrogen Lone pair of electron present on nitrogen enhanced electronegative character of nitrogen Pyramidal structure of NH3
10 The boiling point of pure water at 1 atm pressure is. 98<sup>o</sup>C 100<sup>o</sup>C 69<sup>o</sup>C 120<sup>o</sup>C
11 The boiling point of water at Murree Hills. 90<sup>o</sup>C 98<sup>o</sup>C 100<sup>o</sup>C 120<sup>o</sup>C
12 The boiling point of water at the top mount Everest is. 59<sup>o</sup>C 69<sup>o</sup>C 83<sup>o</sup>C 75<sup>o</sup>C
13 The distillation of liquid under reduced pressure is called. Destructive distillation Vaccum distillation Simple distillation Fractional distillation
14 The boiling point of glycerin at one atm is. 280 <sup>o</sup>C 290 <sup>o</sup>C 100 <sup>o</sup>C 110 <sup>o</sup>C
15 The process in which liquid can be made to boil at low temperature in known as .........distillation Simple Thermal Steam Vacuum
16 In order to mention the B.P of water at 110 oC the external pressure should be. Between 760 torr and 1200 torr Between 200 torr and 760 torr 765 torr Any value of pressure
17 When water freezes, its volume increase. 12% 9% 15% 18%
Download This Set
×