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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?
List three characteristic properties of covalent compounds.
Give appropriate scientific reasons for Carbon tetrachloride does not conduct electricity.
Give one example of a molecule containing a triple covalent bond.
Fill in the blank in the following sentence:
The number of single covalent bonds in C2H2 molecule are ...........
What type of bond is present in oxygen molecule?
Why is graphite used for making dry cell electrodes but diamond is not?
Which inert gas does the Cl atom in HCl resemble in electron arrangement?
Define a covalent bond.
What is the difference between ionic compounds and covalent compounds?
State the type of bonding in the following molecule.
Ammonium ion
Give two example in following case:
Liquid non polar compounds
Explain the structure of Ammonium ion.
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.
What is the difference between a polar covalent compound and a non-polar covalent compound?
Potassium chloride is an electrovalent compound, while hydrogen chloride is a covalent compound, But, both conduct electricity in their aqueous solutions. Explain.
Name two carbon compounds used in day-to-day life.
Write an Explanation.
Alkyne
Which of the following is the formula of Butanoic acid?
In covalent bond formation, the sharing of ______ electrons takes place in their outermost shell.
