Alkalinity of water can be defined correctly by one of the following ways
A
It is the presence of ions in water that will neutralize hydrogen ions
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B
it is the measure of ability of water to neutralize oxygen
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C
it is the measure of ability of water to neutralize carbonates
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D
it is the measure of ability of water to neutralize hydroxides
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Solution
The correct option is A It is the presence of ions in water that will neutralize hydrogen ions Alkalinity is the capacity of water for neutralizing an acid solution.
or
Alkalinity is a measure of the capacity of water or any solution to neutralize or 'buffer' acids. The ability to resist changes in pH by neutralizing acids or bases is called buffering.