GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1
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4
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7
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10
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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: -The pH scale is centered on 7-meaning that a solution with a pH of 7 is perfectly neutral (neither acidic nor basic).