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प्रश्न
Buckminsterfullerene is an allotropic form of the element:
(a) phoshorus
(b) fluorine
(c) carbon
(d) sulphur
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उत्तर
carbon
Buckminsterfullerene is an allotropic form of the element carbon, and contains 60 carbon atoms joined in a spherical structure.
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संबंधित प्रश्न
Name the type of bonds formed in ionic compounds and in the compounds formed by carbon.
Give appropriate scientific reasons for Carbon tetrachloride does not conduct electricity.
What type of bonds are present in H2 molecule? Draw their electron-dot structures.
Compare the properties of ionic compounds and covalent compounds.
State one use of diamond which depends on its 'extraordinary brilliance' and one use of graphite which depends on its being 'black and quite soft'.
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
Explain the following term with example.
Alkane
The covalent bond in which the electrons are shared equally between the combining atoms.
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
The molecule which contains a triple covalent bond is ______.
The particles present in strong electrolytes are
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 ______.
Electrons are getting added to an element Y:
Is Y getting oxidised or reduced?
Explain why carbon tetrachloride does not dissolve in water.
Draw the electron dot diagram and structure of :
methane
What is the difference between :
Ionic compounds and covalent compounds
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
______ is an example of a covalent compound having a high melting point.
