A solution with a pH of 7 (at 25°C) is classified as :
Neutral
The pH scale runs from 0 to 14 at 25°C, with values below 7 indicating acidic solutions and values above 7 indicating basic (alkaline) solutions.
A pH of exactly 7 means the concentration of hydrogen ions (\(H^+\)) equals the concentration of hydroxide ions (\(OH^-\)) in the solution, which is the defining condition of neutrality, as seen in pure water at 25°C.
Therefore, a solution with a pH of 7 is classified as neutral.
Similar Questions
Iron is extracted from its ore haematite (\(Fe_2O_3\)) by :
Which among the following metallic elements is present in the highest average abundance in the Earth's crust?
The property of metals that allows them to be beaten into thin sheets is called:
Which of the following is used to test whether a substance is acidic or basic?
Important Questions from Basic Concepts of Chemistry
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
Sphalerite is an ore of:
If formula of sodium salt of an anion X is \(Na_2X\) , then the formula of its aluminium salt would be
Which of the following set contains same number of molecules?
A. 1 gram O 2, 2 grams SO 2
B. 1 gram CO 2, 1 gram N 2O
C. 1 gram O 2, 1 gram O 3
