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Question
Choose the correct answer from the options given below
Which one is coordinate molecule?
Options
H2O
CH4
N2
\[\ce{NH+4}\]
Solution
\[\ce{NH+4}\]
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RELATED QUESTIONS
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
Give a reason for Inert gases do not form ions.
Why do atoms combine?
Define a coordinate bond and give the conditions for its formation.
Fill in the blanks
A coordinate bond is represented by an arrow pointing from ________ to__________ atom.
What is a lone pair of electrons?
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 ammonium ion from ammonia gas and hydrogen ion.
Give reason for the following:
Covalent compounds have a low melting and boiling point.
