
Methyl orange is used as an indicator. It shows colour changes in acid, base and neutral substance. Tabulate your results as follows:
Indicator Colour change inference Methyl orange No change --- -- Acid Yellow ---
Indicator | Colour change | inference |
Methyl orange | No change | --- |
-- | Acid | |
Yellow | --- |
Answer
473.1k+ views
Hint: Indicators are the substance that changes colour in the reaction. Colour change depends upon the pH. Indicators are used to determine the end point of the acid-base titration.
Complete step-by-step answer:Methyl orange is a weak base. Methyl orange indicator is used in the strong acid weak base titration.
The colour change of methyl orange depends upon the pH of the solution. In acidic medium means pH below it shows red colour. In the range pH, Methyl orange is of orange colour and in basic medium shows yellow colour.
The structure of methyl orange is as follows:
The change in methyl orange is represented as:
As the base is titrated with acid, initially in the basic medium methyl orange shows yellow colour. As the acid is added, concentration of acid increases, so the methyl orange remains in unionised form which is of red colour.
Methyl orange is of orange in acidic medium and
Results are tabulated as follows:
Note:Methyl orange shows different colours in acid, base and neutral substance. It changes colour from red to orange to yellow as the pH of the solution increases. As the pH decreases the colour changes from yellow to orange to red. Phenolphthalein, methyl blue, Erichrome blue are some of the indicators. At the end point, the base is completely neutralised with acid so both are present in equal amounts so, at the end point, sharp colour change is observed.
Complete step-by-step answer:Methyl orange is a weak base. Methyl orange indicator is used in the strong acid weak base titration.
The colour change of methyl orange depends upon the pH of the solution. In acidic medium means pH below
The structure of methyl orange is as follows:

The change in methyl orange is represented as:
As the base is titrated with acid, initially in the basic medium methyl orange shows yellow colour. As the acid is added, concentration of acid increases, so the methyl orange remains in unionised form which is of red colour.
Methyl orange is of orange in acidic medium and
Results are tabulated as follows:
Indicator | Colour change | inference |
Methyl orange | No change | Neutral |
Red | Acid | |
Yellow | Base |
Note:Methyl orange shows different colours in acid, base and neutral substance. It changes colour from red to orange to yellow as the pH of the solution increases. As the pH decreases the colour changes from yellow to orange to red. Phenolphthalein, methyl blue, Erichrome blue are some of the indicators. At the end point, the base is completely neutralised with acid so both are present in equal amounts so, at the end point, sharp colour change is observed.
Recently Updated Pages
Earth rotates from West to east ATrue BFalse class 6 social science CBSE

The easternmost longitude of India is A 97circ 25E class 6 social science CBSE

Write the given sentence in the passive voice Ann cant class 6 CBSE

Convert 1 foot into meters A030 meter B03048 meter-class-6-maths-CBSE

What is the LCM of 30 and 40 class 6 maths CBSE

What is history A The science that tries to understand class 6 social science CBSE

Trending doubts
Father of Indian ecology is a Prof R Misra b GS Puri class 12 biology CBSE

Who is considered as the Father of Ecology in India class 12 biology CBSE

Enzymes with heme as prosthetic group are a Catalase class 12 biology CBSE

A deep narrow valley with steep sides formed as a result class 12 biology CBSE

An example of ex situ conservation is a Sacred grove class 12 biology CBSE

Why is insulin not administered orally to a diabetic class 12 biology CBSE
