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प्रश्न
Give two example in the following case:
Co-ordinate bond compounds
Give an example in the following case:
Co-ordinate bond compound
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उत्तर १
Ammonium and hydronium ion.
उत्तर २
NH4Cl and NH4NO3
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संबंधित प्रश्न
By drawing an electron dot diagram show the formation of Ammonium ion [Atomic No.: N = 7 and H = 1]
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) |
Choose the correct answer from the options given below:
A compound X consists of only molecules. Hence, X will have
A. A crystalline hard structure
B. A low melting point and low boiling point
C. An ionic bond
D. A strong force of attraction between its molecules
What is meant by the term chemical bonding?
Why do atoms combine?
Give the conditions for coordinate bond formation.
Choose the correct answer from the options given below
Which one is coordinate molecule?
What is a 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.
What are the term defined below?
A bond formed by a shared pair of electrons with both electrons coming from the same atom.
