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प्रश्न
State any two uses of graphite.
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उत्तर
Uses of graphite:
(1) As graphite is a good conductor of electricity, it is used in making carbon electrodes in dry cells.
(2) Graphite is used in making pencil leads and black paints.
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संबंधित प्रश्न
Name the following:
The property of element by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure.
Write the electron-dot structure for the following molecule.
Cl2
Fill in the following blank with suitable word:
The general formula CnH2n for cycloalkanes is the same as that of ...........
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
Explain why, diamond is hard while graphite is soft (though both are made of carbon atoms).
Write two points of difference in the structures of diamond and graphite.
Explain why, graphite can be used as a lubricant but diamond cannot.
Explain why, diamond can be used in rock drilling equipment but graphite cannot.
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
One of the following contains a double bond as well as single bonds. This is:
(a) CO2
(b) O2
(c) C2H4
(d) C2H2
Which of the following has a triple bond as well as single bonds?
(a) ethene
(b) methane
(c) ethyne
(d) nitrogen
Explain the Structural isomerism term with example.
Give examples for the following:
Two gaseous non polar compounds.
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
In the liquid state, X will
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
The molecule which contains a triple covalent bond is ______.
Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.
Draw the electron dot diagram and structure of magnesium chloride.
Although metals form basic oxides, which of the following metals form an amphoteric oxide?
