PPSC Chemistry Full Book Test With Answers

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PPSC Chemistry Full Book Test

Sr. # Questions Answers Choice
1 Which of the following has hexagonal structure. Sodium chloride Potassium choride Diamond Graphite
2 The unit cell having dimensions, a = b=c, alpha = beta= gama not equal 90 o is known. Cubic Trigonal Tetragonal Monoclinic
3 A unit cell having dimension , a = b c, alpha, beta, gama = 90o is known as. Cubic Hexagonal Orthorhombic None of them
4 Among the unit cells given below, which has the highest symmetry Monoclinic Cubic Hexagonal Orthorhombic
5 Which of the following unit cells has least symmetry. Monocline Cubic Triclinic Tetragona
6 The angle between corresponding planes forming the external surfaces of the crystal remains constant for a given substances This is known as. Steno's law Henry's law Bragg law Pascal law
7 A device which is used to measure the interracial angle is known as Voltmeter Potentiometer pH Meter Goniometer
8 Which of the following is not related to crystallography . Law of rational indices Law of anymmetry Law of constancy of interfacial angel Henry's law
9 Which type of the solids are generally good conductors of electricty. Covalent Ionic Metallic Molecular
10 Which of the following is an example of molecular solids. MgO ZnO Ice Graphite
11 Which of the following in not a characteristics of crystalline solids. Sharp melting point Isotropic Long range orderly arrangemnt None of above
12 The particle motion in solids is Only vibratory Only translator Vibratory and rotatory Only translatory
13 Which of the following is not a characteristics of solids. Definite shape Definite mass Definite volume Fluidity
14 Poise is a unit of. Refractive index Optical activity Fluidity Viscosity
15 For assciated liquids, the value of d/M n x 108 should be (where d is the density, M is the molar mass and n is the coefficient of viscosity) Zero Infinte Higher than 70 Less than 70
16 The intensity of magnetization produced per unit strength of the applied magnetic field is called magnetic susceptibility., which of the following statements is not related with this phenomenon. Confirmation of structure of given compound Complex storeochemistry Diamagnetic nature of molecules Paramagnetic nature of molecules.
17 Which of the following compounds does not show dipole moment. CH3OH HBr CCl4 CHCl3
18 Which of the following compounds shows optical activity Lactic acid Maltose Glucose All above
19 The rotation of plane polarized light when it posses through 1 dm of a solution containing 1 gram of the substance per cm3 of the solution is called. Molar rotation Molar refraction Specific refraction Specific rotation
20 The angle of rotation in a polarimeter depends on. Nature of the compound Nature of the solvent Wavelength of the light used All above factors.
21 Which of the following instruments is used to measure the optical activity. Refractometer Conductivity meter Polarimeter Torsion meter
22 The internal resistance to flow possessed by a liquid is called its. Fluidity Viscosity Surface tension Turbidity
23 The units of coefficient of viscosity are. kg m-1 n-1 gm -1, s-1 kgm-1, min -1 None of the above
24 Which of the following device is used to measure the surface tension. Polarimeter Viscometer Refractometer Stalagnameter
25 The rise of a liquid in capillary tube is due to. Osmosis Diffusion Surface tension Viscosity
26 The units of surface tension in SI system are Joule m-1 Newton m-1 Erg cm-1 Dynes cm-2
27 At higher altitudes, the boiling point of water is lowered because. Atmospheric pressure is low Temperature is low at high altitude Atmospherics pressure increase None of the above
28 Which of the following liquids has lowest vapour pressure at 25 oC Benzene Chloroform Ether H2O
29 A drop of a liquid acquires spherical shape because of. Its viscous nature Capillary action The tendency to acquire minimum surface are Its shape
30 Which of the following property of liquids concern with the interval resistance to its flow. Refractive inded Viscosity Optical activity Dipole moment
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