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प्रश्न
What is meant by the term chemical bond and chemical bonding?
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उत्तर
Chemical bond: A chemical bond may be defined as the linkage that stands for the force which actually holds the atoms together within the molecule.
Chemical bonding: The phenomenon during which a chemical bond is formed is called chemical bonding.
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संबंधित प्रश्न
The following table shows the test a student performed on four different aqueous solutions which are X, Y, Z and W. Based on the observations provided, identify the cation present:
| Chemical test | Observation | Conclusion |
| To solution X, ammonium hydroxide is added in minimum quantity first and then in excess |
A dirty white precipitate is formed which dissolves in excess to form a clear solution |
(1) |
| To solution Y ammonium hydroxide is added in the minimum quantity first and then in excess |
A pale blue precipitate is formed which dissolves in excess to form a clear inky blue solution. |
(2) |
| To solution W a small quantity of sodium hydroxide solution is added and then in excess. |
A white precipitate is formed which remains insoluble. |
(3) |
| To a salt Z calcium hydroxide the solution is added and then heated. |
A pungent smelling gas turning moist red litmus paper blue is obtained. |
(4) |
Give a reason for Inert gases do not form ions.
Give two example in the following case:
Co-ordinate bond compounds
Why do atoms combine?
Give the conditions for coordinate bond formation.
Fill in the blank
Coordinate bond is also called __________bond.
Fill in the blanks
A coordinate bond is represented by an arrow pointing from ________ to__________ atom.
Draw an electron dot diagram of a hydronium ion and label the lone pair of electrons.
Bonding in this molecule can be understood to involve coordinate bonding.
Identify the following:
A bond formed between two atoms by sharing of a pair of electrons, with both electrons being provided by the same atom.
