Indicator
Indicator: Overview
This topic covers concepts such as methyl orange, dilution of an acid with water, indicators, natural indicators and litmus.
Important Questions on Indicator
List down the limitations of methyl red indicators?
The litmus paper or the litmus solution is obtained from _____ plant.
Indicators that are synthesised in the laboratory are known as _____ indicators.
The synthetic indicator is a substance that is found naturally and can determine whether the substance is acidic or basic.
Which of the following is an example of synthetic indicator ?
A yellow stain of curry on a white cloth turns reddish brown when it comes in contact with soap. Why does it happen?
What is an indicator? Give one example.
Which of the following substances are known to be the neutral substances?
Which of the following sources are used to extract the natural indicator - litmus?
The special type of substances used to test whether a substance is acidic or basic are known as _____.
When a strip of red litmus paper is dipped in the solution A, it remained red.
What is the possible nature of the solution A?
The colour of the litmus solution extracted from the lichen plant is _____.
Solutions of substances that show a different colour in acidic, basic and neutral solutions are called as _____.
Which of the following substances act as the natural indicators?
Hibiscus flower is an example for natural indicator
What are indicators? Name any two indicators. Explain the effect of these indicators on acids and bases?
Indicators are substances which show change in colour when brought in contact with acid and bases.
