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Byju's Answer
Standard X
Chemistry
Effect on Indicators by Acids and Bases
What colour d...
Question
What colour do the following indicators turn when added to base or alkali (such as sodium hydroxide)?
(a) methyl orange
(b) litmus
(c) red cabbage extract
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Solution
The indicator will turn:
(a) Methyl orange - Yellow.
(b) Litmus - Blue
(c) Red cabbage extract - Green
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Similar questions
Q.
What colour do the following indicators turn when added to a base or alkali (such as sodium hydroxide)?
(a) methyl orange
(b) litmus
(c) red cabbage extract
Q.
(a) What is produced if an acid is added to a base?
(b) Why does dry HCl gas not change the colour of dry litmus paper?
(c) What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
Q.
Mention the colour changes observed when the following indicators are added to acids:
(a) Alkaline phenolphthalein solution.
(b) Methyl orange solution.
(c) Neutral litmus solution.
Q.
The indicators which turn red in acid solution are:
(a) turmeric and litmus
(b) phenolphthalein and methyl orange
(c) litmus and methyl orange
(d) phenolphthalein and litmus
Q.
Identify the following solutions, whether they are acid or alkali.
Solution
Change in Indicator
Acid/Alkali
Litmus
Phenolphthalein
Methyl orange
1.
...
No change
...
2.
...
...
Orange colur turns red
3.
Red litmus turns blue
...
...
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