When a student added a few drops of methyl orange indicator to a colourless solution, the solution turned red. Which of the following should he add in excess so that the colour changes to yellow ?
(1) NaOH solution
(2) H2SO4 solution
(3) Lemon juice
(4) Vinegar solution
Answers
Answered by
4
Answer:
1) NaOH should be added cause it is basic in nature and basic turns methyl orange in yellow clour
Answered by
1
NaOH (Sodium Hydroxide) solution should be added in excess in order to change the colour from red to yellow.
Explanation:
- In acidic solution, methyl orange turns into a red colour. In basic solution, methyl orange turns into a yellow colour.
- In the given options, H2SO4 (sulphuric acid), lemon juice and vinegar solution are acidic in nature. NaOH (Sodium Hydroxide) is the only solution that is basic in nature. When NaOH (Sodium Hydroxide) is added to the acidic solution, it turns into yellow.
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