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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?
उत्तर
In one molecule of buckminsterfullerene, 20 hexagons of carbon atoms are present.
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संबंधित प्रश्न
Name the type of bonds formed in ionic compounds and in the compounds formed by carbon.
Butanone is a four-carbon compound with the functional group:
State whether the following statement is true or false:
Diamond and graphite are the covalent compounds of carbon element (C)
The molecules having triple bond in them are:
(a) oxygen and ethyne
(b) carbon dioxide and ammonia
(c) methane and ethene
(d) nitrogen and ethyne
What are the conditions necessary for the formation of covalent molecules?
For each compound mentioned above give the formulae of ions formed in aqueous solution.
State the type of bonding in the following molecule.
Water
Complete the following:
In case of non-polar covalent bond, the covalent bond is formed in the ______ of atoms and shared electrons are ______ distributed. (corner, middle, equally, unequally)
Give two example in following case:
Liquid non polar compounds
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
Choose and write the correct option.
Which type of carbon-carbon bonds are present in Vanaspati ghee?
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
Answer the following questions based on the table above:
What type of bond is formed between Y and Z.
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 ______.
State the type of bond formed when the combining atom has zero E.N. difference.
What is the difference between :
Ionic compounds and covalent compounds
Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain
(i) oxidation
(ii) reduction
(iii)oxidising agent
(iv)reducing agent
Which of the following statements are usually correct for carbon compounds? These
- are good conductors of electricity
- are poor conductors of electricity
- have strong forces of attraction between their molecules
- do not have strong forces of attraction between their molecules.
What is a covalent bond?
Write notes on the characteristics of covalent compounds.
Carbon can neither form C4- cation nor C4 anion. Why?
