what are indicators give example
Answers
Answer:
The indicators that are obtained from plants are known as natural indicators. Examples – Turmeric, china rosa, red cabbage and grape juice. Some flowers such as the hydrangeas can also determine whether a substance is acidic or basic.
Explanation:
INDICATORS = Indicators are substances that change colour when they are added to acidic or alkaline solutions.
Litmus, phenolphthalein, and methyl orange are all indicators that are commonly used in the laboratory...
EXAMPLE = Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline.
Because acidity and alkalinity relate to pH, they may also be known as pH indicators.
Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice....