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Question
The metal hydroxide which reacts with both acids and alkalis to form salt and water is ______.
Options
Calcium hydroxide
Magnesium hydroxide
Aluminium hydroxide
Ferric hydroxide
Solution
The metal hydroxide which reacts with both acids and alkalis to form salt and water is aluminium hydroxide.
Explanation:
Because Al(OH)3 is amphoteric in nature, it can generate salt and water as well as behave as a base with a strong acid.
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RELATED QUESTIONS
State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions :
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Write a balanced equation for this reaction.
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Choose the correct answer from the options given below :
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Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess
The following table shows the tests 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 minium quantity first and then in excess | A dirty white precipitate is formed which dissolves in excess to form a clear solution | (i) |
| To Solution Y, ammonium hydroxide is added in minimum quantity first and then in excess | A pale blue precipitate is formed which dissolves in excess to form a clear inky blue solution | (ii) |
| To solution W, A small quantity of sodium hydroxide solution is added and then in excess | A white precipitate is formed which remains insoluble | (iii) |
| To a salt Z, calcium hydroxide solution is added and then heated | A pungent smelling gas turning moist red litmus paper blue is obtained | (iv) |
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______ is a white precipitate that is soluble in excess of Ammonium hydroxide solution.
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Ammonium hydroxide solution when added to Solution B gives a white precipitate which does not dissolve in excess of ammonium hydroxide solution.
Write balanced equation:
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