Question

Describe briefly how the pH of a colourless solution could be measured using universal indicator.

Answer 1

Answer:

Colour will turn green

Explanation:

When the universal indicator will be dipped in a neutral/colourless solution it will turn green in colour

Answer 2

• Universal indicator is a mixture of various compounds that have the potential to change color to indicate the alkalinity or acidity of a solution.
• Component of the universal indicator are - water, sodium hydroxide, thymol blue, methyl red, bromothymol blue, phenolphthalein, and sodium bisulfite.
• The pH of a colorless could be measured using a universal indicator as follows-
• If the solution takes the color Red, this means that the solution is a strong acid with pH < 3
• If the solution takes the color Orange or yellow, this means that solution is a weak acid with a pH ranging from 3-6.
• If the solution takes a green color, this means that it is a neutral solution with a pH of 7.
• If the solution turns blue on mixing the universal indicator, this implies that the original solution is a weak base or weak alkali with a pH ranging from 8-11.
• If the colorless solution turns indigo or violet in color on mixing with the universal indicator, this implies that the original solution is a strong alkali with a pH > 11.

#spj2

For more such questions

https://brainly.in/question/18485964?utm_source=android&utm_medium=share&utm_campaign=question

https://brainly.in/question/43554323?utm_source=android&utm_medium=share&utm_campaign=question