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प्रश्न
Give a reason for Inert gases do not form ions.
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उत्तर
Inert gases do not produce ions because their outermost shell is completely filled, resulting in a stable electronic state. As a result, atoms cannot absorb or lose electrons in order to create ions.
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संबंधित प्रश्न
Identify the term/substance in the following:
The electrons present in the outermost shell of an atom.
By drawing an electron dot diagram show the formation of Ammonium ion [Atomic No.: N = 7 and H = 1]
Identify the anion present in the following compounds:
A salt M on treatment with concentrated sulphuric acid produces a gas which fumes in moist air and gives dense fumes with ammonia
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 two example in the following case:
Co-ordinate bond compounds
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.
Choose the correct answer from the options given below
Which one is coordinate molecule?
Draw an electron dot diagram of a hydronium ion and label the lone pair of electrons.
By drawing an electron dot diagram, show the lone pair effect leading to the formation of the ammonium ion from ammonia gas and hydrogen ion.
