………………….is the science interesting in discovering substances with extra ordinary properties
B. physical chemistry
C. thermal chemistry
D. nano chemistry
What is a buckyball?
A. A carbon atom (C60)
B. Nickname for Mercedes-Benz’s futuristic concept car (C111)
C. Plastic explosives nanoparticle (C4)
D. Concrete nanoparticle with a compressive strength of 20 nanonewtons (C20)
Nanotechnology allows the manipulation of atoms or molecules to create or modify materials at the nanoscale.
the solution which has pH less than 7 considered :
What is nanotechnology?
A. Study and manipulation of technology that is micro sized
B. Study and manipulation of matter that is small but can still be seen by the human eyes
C. Study and manipulation of matter at a scale of 1-100 nano meters
D. Study and manipulation of matter that moves at a speed measured in nano seconds
cell phones power supply is an invention of which branch of chemistry:
A. physical chemistry
C. thermal chemistry
D. electrical chemistry
The compounds and elements that are present at the beginning of a reaction:
There are _____________ nanometers in a meter.
A. 10 million
B. 1 billion
The study of living things; also known as life science
one of the earliest applications of chemistry
D. studying matter
Nanotubes are considered as Two-dimensional (2-D) nanomaterials
the correct method for measurement is :
A. choose a suitable tool
B. get numerical value and put a measuring unit
C. adjast the time
D. choose a suitable tool then get numerical value and put a measuring unit
the substance whicch extracted from a natural resources or prepared in lab. is :
D. chemical compound
an organized structure of knowledge is the definition of :
A. facts and concepts
The word “nano” means:
A. one millioneth
B. one billioneth
C. one thousandth
D. one trillioneth
How wide is a nano-scale particle?
D. Very small
A. Is the smallest particle of an element that retains all the properties of that element.
B. Is anything that has mass and takes up space.
C. Has a positive charge
D. Has a negative charge
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