PPSC Chemistry Full Book Test With Answers

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PPSC Chemistry Full Book Test

Sr. # Questions Answers Choice
1 The orientation of a crystalline surface is confidently defined in terms of. Lijima Indices Miller indices Clausen indices None
2 Which of the following techniques is bulk technique. Powder XRD Single Crystal XRD SEM TEM
3 The suffix '-ene' in the name of fullerene shows the presence of ___ in the molecule. One triple bond One double bond Two single bonds Two triple bonds
4 Who prepared and explained nano tubes for the first time. Sumio Tijima Richard Smaley Erick Drexler Richard Feynamann
5 The width of a carbon nano tube is.________ nm 1 1.3 2.5 10
6 The capacity of normal human eye to see the smallest object is _______ micro meter 10000 1000 100 10
7 The thermal conductivity of an SWNT along length is _____ watt/(m.k) 35 330 386 3500
8 In radial direction the thermal conductivity of a nano tube is ______ watt/(m.k) 3500 385 0 350
9 The electrical conductivity of a nano tube is __________ times that of copper. 10 100 1000 1/100
10 In compressive strength of a nanotube ______ its tensile strength. I less than Is greater than Is equal to Less than or equal to.
11 The smallest cluster of carbon atoms in Bucky balls known till today consists of ___________ carbon atoms. 75 20 60 15
12 Which ratio decides the efficiency nano substance. Weight /volume Surface area/volume Volume/weight Pressure/volume
13 What does 'F' stand for in AFM. Fine Front Force Flux
14 The full form of STM is Scanning Tunneling Microscope Scientific Technical Microscope Systematic Technical Microscope SuperTensile Microscope
15 The width of a typical DNA molecule is _______nm 1 2 5 10
16 Which of the following does not apply to nanotechnology. It is a general purpose technology It can be called Green technology Newtonian mechanics can describe it. It involves rearrangement of atoms
17 Who was the first scientist to describe that substance having Nano dimensions possess altogether different and unique properties. Richard Feynamann Erick Drexler Archimedes Michael Faraday
18 Egyptians were using ________ to prepare make up for eyes. Nanoaluminium Nanocopper Nanosteel Nanolead
19 Greeks and Romans had used nanoparticles in the manufacture of. Cosmetics for eyes Medicines <div>Metals</div> Hair -dye
20 Nanoscience can be studied with the help of Quantum mechanics Newtonain mechanics Macro dynamics Grophysics
21 Who coined the word nanotechnology. Eric Drexler Richard Feynamann Sumio tijma Richard smalley
22 Which of the microscope techniques is similar to the Atomic Force Microscopy (AFM) Scanning Electron Microscopy Scanning Tunneling Microscopy Transmission Electron Microscopy None of the above
23 Fullerene or bucky ball is made up of ________ carbon atoms. 100 20 75 60
24 The size of nanoparticles is between __________ nm 100 to 1000 1 to 100 0.1 to 10 0.01 to 1
25 In a bucky ball each carbon atom in bound in __________ adjacent carbon atoms. 1 2 3 4
26 The ration of thermal conductivity of silver to that of a carbon nanotube is. 100 : 1 1 :100 10:1 1:10
27 The tensile strength of a carbon nanotube is __________ times that of steel. 10 25 100 1000
28 The diameter of fly ash particles is._________ micro meter 5-10 10-20 20-30 100
29 Nano technology in other words is. Carbon engineering Atomic engineering Small technology Microphysics
30 __________ are the extensions of bucky balls. Goodesic domes Hexagons Carbon nanotubes AFM and STM
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