Advertisements
Advertisements
प्रश्न
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
Advertisements
उत्तर
In one molecule of buckminsterfullerene, 20 hexagons of carbon atoms are present.
APPEARS IN
संबंधित प्रश्न
Name the type of bonds formed in ionic compounds and in the compounds formed by carbon.
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?
Write two points of difference in the structures of diamond and graphite.
An element A has 4 valence electrons in its atom whereas element B has only one valence electron in its atom. The compound formed by A and B does not conduct electricity. What is the nature of chemical bond in the compound formed? Give its electron-dot structure.
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
The type of bonding in X will be
Give reason as to why hydrogen chloride can be termed as a polar covalent compound.
Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride [ H=1, C=6, Mg=12, Cl=17].
Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.
Draw the electron dot diagram and structure of nitrogen molecule.
Name the anion present in the following compound:
When a barium chloride solution is added to a solution of compound B, a white precipitate insoluble in dilute hydrochloric acid is formed.
What are Allotropes? Name any two allotropic forms of carbon. Give one use of it.
The number of electrons in the valence shell of a carbon atom is 4.
When ethyl alcohol and acetic acid are mixed, the resulting ester has a chemical formula ______.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
Cation is formed when ______.
Which of the following compounds of carbon does not consist of ions?
In covalent compounds, the bond is formed due to ______ of electrons.
