2689681
Pregunta 1
Pregunta
What is meant by Amphoteric?
Respuesta
-
A molecule or ion that can react as an acid and a base.
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Able to breathe both in water and on land.
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A substance with pH < 7
Pregunta 2
Pregunta
Acids react with metals to form salts
Respuesta
- True
- False
Pregunta 3
Pregunta
What kind of Indicator turns yellow in alkali?
Respuesta
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Litmus
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Phenolpthalein
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Methyl orange
Pregunta 4
Pregunta
pH value for a strong acid?
Respuesta
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1-2
-
12-14
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7
Pregunta 5
Pregunta
Which of these is NOT an example of a base
Respuesta
-
Metal oxides
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Hydroxides
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Nitrates
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Ammonia
Pregunta 6
Pregunta
Bases neutralise acids, forming a ______ and ______
Respuesta
-
Salt, Water
-
Salt, Hydrogen
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Salt, Oxygen
Pregunta 7
Pregunta
Reacting a base with an ammonium compound (an example of a base reaction) gives ammonia as a product as well as salt and water
Respuesta
- True
- False
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