GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
pH stands for presence of
A
Helium
B
Hydrogen
C
Hydrogen Peroxide
D
Helium Peroxide
Explanation: 

Detailed explanation-1: -pH is a measure of the hydrogen ion concentration in solution and is also referred to as the degree of acidity or alkalinity.

Detailed explanation-2: -pH may look like it belongs on the periodic table of elements, but it’s actually a unit of measurement. The abbreviation pH stands for potential hydrogen, and it tells us how much hydrogen is in liquids-and how active the hydrogen ion is.

Detailed explanation-3: -What is the full form of pH? The full form of pH is “Potential of Hydrogen”. pH is known as the negative logarithm of H+ ion concentration. Hence the meaning of the name pH is explained as the strength of hydrogen or power of hydrogen.

Detailed explanation-4: -In this way, pH is determined by hydrogen-ion concentration. In the case of a neutral solution, [H+]=10-7, which we call a pH of 7. This means, for example, that a hydrogen-ion concentration of a solution with a pH of 4 is 10-4mol/l, meaning it contains 0.0001 mol of hydrogen ions in a solution of 1 liter.

Detailed explanation-5: -pH is an abbreviation for “power of hydrogen” where “p” is short for the German word for power, potenz and H is the element symbol for hydrogen. The H is capitalized because it is standard to capitalize element symbols. The abbreviation also works in French, with pouvoir hydrogen translating as “the power of hydrogen".

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