Class 10 Exam > Class 10 Questions > What is pH? a) The positive logarithm of the ...
Start Learning for Free
What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration?
Most Upvoted Answer
What is pH? a) The positive logarithm of the hydroxide ion concentrati...
Option d is the right one because pH =-log(H+) whe where log is the base -10 logarithm and H + stand for the hydrogen ion concentration in units of moles per litre solution the term pH comes from the German word for 10th which means power combined with H the element symbol for hydrogen so pH is an abbreviation for power of hydrogen
Community Answer
What is pH? a) The positive logarithm of the hydroxide ion concentrati...
What is pH?
Explanation:
a) The positive logarithm of the hydroxide ion concentration
b) The positive logarithm of the hydrogen ion concentration
c) The negative logarithm of the hydroxide ion concentration
d) The negative logarithm of the hydrogen ion concentration
In conclusion, the correct answer is b) The positive logarithm of the hydrogen ion concentration. pH is a measure of acidity or alkalinity, defined as the negative logarithm of the hydrogen ion concentration in a solution.
pH is a measure of the acidity or alkalinity of a solution. It indicates the concentration of hydrogen ions (H+) in the solution. The pH scale ranges from 0 to 14, with 7 being considered neutral. Values below 7 indicate acidity, while values above 7 indicate alkalinity. pH is an important concept in chemistry and biology, as it can affect various chemical reactions and biological processes.
Explanation:
a) The positive logarithm of the hydroxide ion concentration
This statement is incorrect. pH is not related to the hydroxide ion concentration.
b) The positive logarithm of the hydrogen ion concentration
This statement is correct. pH is defined as the negative logarithm (base 10) of the hydrogen ion concentration in a solution. The hydrogen ion concentration represents the acidity or alkalinity of the solution. The pH scale is logarithmic, meaning that a change of one unit on the pH scale corresponds to a tenfold difference in the concentration of hydrogen ions. For example, a solution with a pH of 3 has 10 times more hydrogen ions than a solution with a pH of 4.
c) The negative logarithm of the hydroxide ion concentration
This statement is incorrect. The negative logarithm of the hydroxide ion concentration is related to pOH, not pH. pOH is the measure of the alkalinity of a solution and is defined as the negative logarithm of the hydroxide ion concentration. pH and pOH are related by the equation pH + pOH = 14, which holds true for aqueous solutions at 25°C.
d) The negative logarithm of the hydrogen ion concentration
This statement is correct. pH is indeed the negative logarithm (base 10) of the hydrogen ion concentration. The negative sign indicates that pH is an inverse measure of acidity, where low pH values correspond to high hydrogen ion concentrations and high acidity, while high pH values correspond to low hydrogen ion concentrations and alkalinity.
In conclusion, the correct answer is b) The positive logarithm of the hydrogen ion concentration. pH is a measure of acidity or alkalinity, defined as the negative logarithm of the hydrogen ion concentration in a solution.
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration?
Question Description
What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration?.
What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration?.
Solutions for What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? defined & explained in the simplest way possible. Besides giving the explanation of
What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration?, a detailed solution for What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? has been provided alongside types of What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? theory, EduRev gives you an
ample number of questions to practice What is pH? a) The positive logarithm of the hydroxide ion concentration b) The positive logarithm of the hydrogen ion concentration c) The negative logarithm of the hydroxide ion concentration d) The negative logarithm of the hydrogen ion concentration? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup