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