OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pH=6.5
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acid
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neutral
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base
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Detailed explanation-1: -Base: A solution that has an excess of OH-ions. Another word for base is alkali.
Detailed explanation-2: -Addition of an excess base to a solution of sodium hydroxide means an addition of more hydroxide ions (OH−). This will increase the concentration of hydroxide ions (OH−).
Detailed explanation-3: -Answer and Explanation: A substance the dissolves in water and produces hydroxide ions is a base. While most bases like potassium hydroxide and sodium hydroxide contain the hydroxide ion itself (KOH, NaOH), others like ammonia (NH3 N H 3 will form hydroxide ions when dissolved in water.
Detailed explanation-4: -Any solution which contains more OH-ions than H3O+ ions is said to be alkaline. The measure of the alkalinity of the solution is the OH-concentration. The greater the OH-concentration, the more alkaline the solution.