Question

Which is used to measure the concentration of hydrogen ions?

Litmus paper


phenolphthalein


methyl orange


pH paper ​

Answer 1

Answer:

pH paper is the use to measure the concentration of hydrogen ions.

Explanation:

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Answer 2

Answer:

Universal Indicator

Explanation:

These are the lines from the NCERT:-

"Can we quantitatively find the amount of these ions present in a solution?

Can we judge how strong a given acid or base is?

We can do this by making use of a universal indicator, which is a

mixture of several indicators. The universal indicator shows different

colors at different concentrations of hydrogen ions in a solution.

Generally paper impregnated

with the universal indicator is used for measuring pH."

So, from here, we can clearly see that Universal Indicator is used for measuring Hydrogen ion concentration in a solution.