FSC Part 1 Chemistry Chapter 4 Liquids and Solids Online Test | ilmkidunya

Chemistry Fsc Part 1 Chapter 4 Online Test

Sr. #	Questions	Answers Choice
1	The process in which liquid can be made to boil at low temperature in known as .........distillation	Simple Thermal Steam Vacuum
2	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
3	When water freezes, its volume increase.	12% 9% 15% 18%
4	Which of the given has hydrogen bonding.	CH4 CCl4 NH3 NaCl
5	Acetone and chloroform are soluble in each other due to.	Intermolecular hydrogen bonding Dipole dipole interaction Instantaneous dipoles All of the above
6	London dispersion force are the only forces present among the.	Molecules of water in liquid state Atoms of helium in gaseous state at high temperature Molecule of solid iodine Molecules of hydrogen chloride gas
7	Dipole-dipole forces are present among.	Molecules of Iodine Atoms of Neon i gaseous state Chloroforms' molecules CCl4 molecules
8	The number of Na, ions which surround each CI^1-ion the NaCI crystal lattice is	8 12 6 4
9	NaCI is face centered cubic structure. The Na ion at the face of the unit cell is shared by	2-unit cells 4-unit cells Only one unit cell 8-unit cells
10	How many allotropic forms are present in carbon	Two Three Four Five
11	Which one of the following substances is not amorphous	Polymer Rubber Glass AgNO<sub>3</sub>
12	Diamond is a bad conductor of electricity because	It has a tight structure It has a high density There are no free electrons present in the crystal of diamond to conduct electronics None of these
13	The molecules of CO₂in dry ice form the	Ionic crystal Covalent crystals Molecular crystals Any type of crystals
14	One of the following liquids has lowest vapour pressure at 32°C. Indicate that liquid	Ether Chloroform Ethanol Water
15	The distillation of a solution under reduced pressure is called	Fractional distillation Destructive distillation Distillation Vacuum distillation
16	Which of the following can form H-bonds	NH<sub>3</sub> C<sub>2</sub>H<sub>6</sub> NaCI CHCI<sub>3</sub>
17	The long chains of amino acids are coiled about one another onto a spiral by	Ionic bond Van der walls forces Hydrogen bonding Overlapping of orbitals

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