GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1-6
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7
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8-14
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0
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Detailed explanation-1: -Conversely, if a solution is neutral, that does not guarantee that it is also at pH 7. For example, at a temperature of 50oC, Kw = 5.47 × 10−14, giving a pH of 6.63. Temperature affects the equilibrium of the reaction of water dissociating into hydrogen and hydroxide ions.
Detailed explanation-2: -A pH of 7 indicates a neutral solution, a pH greater than 7 indicates a basic solution, and a pH of less than 7 indicates an acidic solution.
Detailed explanation-3: -As you can see from the pH scale above, pure water has a pH value of 7. This value is considered neutral-neither acidic or basic.
Detailed explanation-4: -It indicates the concentration of hydrogen ions (H+) and hydroxide ions (OH-) in a solution. These ion concentrations are equal in pure water, which has a pH of 7. This pH value of 7 is important because it indicates a neutral solution.
Detailed explanation-5: -pH of a neutral solution is always 7.