8/6/2019 CHEM, CHAP-3 & 4

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CH#3,4

AL-REHMAN TALENTName------------------------------ Test: Chemistry (I)

Encircle the most suitable answer:1- The pressure exerted by force of one Newton on Area of one square meter is called

(a) Atmosphere (b) Torr (c) Pascal (d) mm of Hg2- Liquids dont have definite(a) Shape (b) Volume (c) Both a & b (d) None

3- Solids have definite

(a) Shape (b) Volume (c) Both a & b (d) None

4- Which law deals with relation b/w pressure and volume at constant temperature(a) Boyle`s law (b) Charle`s law (c) Grahams law (d) General gas equation

5- What will be the temperature in Kelvin at 25 C

(a) 25 K (b) 300 K (c) 298 K (d) 273 K 6- What will be the temperature in C at Kelvin

(a) 0 C (b) 100 C (c) 10 C (d) 273 C

7- The intermolecular forces give particular ______ properties to substance(a) Chemical (b) Physical (c) Both a & b (d) None of them

8- Ionic compound are normally soluble in ________ solvents

(a) Non-polar (b) Polar (c) Both a & b (d) None of them

9- Which of the following are strongest forces(a) Dipole-Dipole Forces (b) Hydrogen Bonding

(c) Dipole-Induced dipole Forces (d) Instantaneous dipole-Induced dipole Forces

10- Which one of the following is called London Forces(a) Dipole-Dipole Forces (b) Ion-Dipole Forces

(c) Dipole-Induced dipole Forces (d) Instantaneous dipole-Induced dipole Forces

11- When water freezes, it occupies _____ more space than liquid state(a) 5% (b) 6% (c) 8% (d) 9%

12- Evaporation occurs at _______ temperature

(a) High (b) Low (c) Absolute (d) All temperatures13- Boiling point of liquid will be ______ at high altitude

(a) High (b) Low (c) Same (d) None

14- Temperature at which two different crystalline forms of a compound co-exist is called

(a) Standard Temperature (b) Absolute Temperature(c) Transition Temperature (d) Normal Temperature

15- Which one is not the property of solids

(a) Rigidity (b) Diffusion (c) Hardness (d) Definite Volume16- Allotropy exists only in

(a) Elements (b) Compounds (c) Both a & b (d) None of them

17- Polymorphism exists only in(a) Elements (b) Compounds (c) Both a & b (d) None of them

18- Which solids are electrical conductors in fused or molten state

(a) Ionic (b) Covalent (c) Molecular (d) All

19- Which solids are non-conductors in solid state(a) Ionic (b) Covalent (c) Metallic (d) All

20- NaCl has ________ Crystal system

(a) Monoclinic (b) Triclinic (c) Cubic (d) Hexagonal

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8/6/2019 CHEM, CHAP-3 & 4

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