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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

At 25 ° C the pH of water is 7. When temperature of water is increased to 70 ° C than pH of water and nature of water is

Options

  1. ApH will decrease and the sample becomes acidic
  2. BpH will increase but the sample will remain neutral
  3. CpH will remain constant as 7 .
  4. DpH will decrease but the sample will remain neutral.

Correct answer

D. pH will decrease but the sample will remain neutral.

Step-by-step solution

High temperature pH and pOH of water decreases so, it will be less then 7 but H + = OH − so solution become neutral.

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