Question
Which of the following is an allotrope of carbon with a
structure composed entirely of carbon atoms?Solution
Fullerene (C60) represents a carbon allotrope characterized by a structure composed exclusively of carbon atoms arranged in a spheroidal hollow cage formation. By contrast, dry ice is solid carbon dioxide, Teflon is a fluorine-containing polymer, and keratin is a naturally occurring protein produced by the body.
The device which transfer the signal from low resistance region to high resistance region is –
Magnesium oxide (MgO) + Water (H2O) = ?
What is the main ore of aluminum?
What happens to a liquid, when the vapour pressure equals the atmospheric pressure?
In the periodic table of elements, what happens to the atomic radius as you move from left to right across a period?
The motion of an object under free fall is an example of which of the following?
Which of the following vitamins is called a water-soluble vitamin?
Alkali metals have ______.
I. low melting points
II. low densities
Turquoise is an ore/mineral of:
Perspiration cools the body because
Relevant for Exams:
