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Using a UI indicator solution, or UI paper, pH 6.7 corresponds to a yellow/green colour
This depends on the kind of pH paper.
color
color
It Should be about 2
The PH paper soaks up the solution & tests the liquid, the pH paper will then change colour to show what the solution contains. Although if the paper stays the same colour it means the solution is nutral & safe.
This color depends on the pH of the solution.
sulphuric acid colour on pH paper
Using a UI indicator solution, or UI paper, pH 6.7 corresponds to a yellow/green colour
by pH Paper ( Litmas Paper) as per PH it take colour.
by a pH paper or pH solution.
This depends on the kind of pH paper.
color
color
Universal pH paper is a type of paper used to find the pH level of a solution and is an indicator.
red
pH paper and pH meter