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प्रश्न
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is:
(a) fifty
(b) sixty
(c) seventy
(d) ninety
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उत्तर
sixty
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is 60.
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संबंधित प्रश्न
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene?
What type of bonds are present in hydrogen chloride and oxygen?
Fill in the blank in the following sentence:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
What type of chemical bonds are formed by carbon? Why?
Explain the formation of a chlorine molecule on the basis of electronic theory of valency.
State one test by which sodium chloride can be distinguished from sugar.
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of nitrogen, N2, is formed from two nitrogen atoms. What name is given to this type of bonding? (Atomic number of nitrogen is 7)
Two non-metals combine with each other by the sharing of electrons to form a compound X.
(a) What type of chemical bond is present in X?
(b) State whether X will have a high melting point or low melting point.
(c) Will it be a good conductor of electricity or not?
(d) Will it dissolve in an organic solvent or not?
Explain the following:
polar covalent compounds electricity.
State the type of bonding in the following molecule.
Methane
Draw an electron dot diagram for the formation of the following. State the type of bonding present in them.
Hydroxyl ion
Explain the following term with example.
Hetero atom in a carbon compound
Explain the following term with example.
Homopolymer
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
X is likely to have a :
Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the options A, B, C and D given below:
X is likely to have a ______.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{.........}\ce{H}\\ \phantom{.........}|\\ \ce{H - C ≡ C - C - H}\\ \phantom{.........}|\\ \phantom{.........}\ce{H} \end{array}\] |
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
Which of the following compounds of carbon does not consist of ions?
Carbon can neither form C4- cation nor C4 anion. Why?
