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प्रश्न
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'.
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उत्तर
1. Diamonds are used in making jewellery because of their extraordinary shine and texture.
2.Graphite is used in making pencil leads (black core of pencils) because of its black colour and softness.
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संबंधित प्रश्न
What are covalent compounds?
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?
Fill in the blank in the following sentence:
Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
Fill in the blank in the following sentence:
The number of single covalent bonds in C2H2 molecule are ...........
What type of chemical bonds are formed by carbon? Why?
Give two general properties of ionic compounds and two those of covalent compounds.
Draw the electron-dot structure of HCl compound and state the type of bonding.
Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity?
Buckminsterfullerene is an allotropic form of the element:
(a) phoshorus
(b) fluorine
(c) carbon
(d) sulphur
What are the conditions necessary for the formation of covalent molecules?
Methane molecule is non-polar molecule. Explain.
State the type of bonding in the following molecule.
Methane
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
Molecular formula of Propane is C3H8 , write the structural formula of propane.
(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
Which of the following is a common characteristic of a covalent compound?
The bond between two oxygen atoms is _______ bond.
Write an Explanation.
Alkane
Give an example for each of the following statement.
A compound in which three covalent bonds are formed.
