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Question
Which of the following substance will give a pale yellow colour when tested with methyl orange indicator?
Which of the following substance will give a pale yellow colour when tested with methyl orange indicator?
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Solution
The correct options are
C Sodium hydroxide
D Lime water
Methyl orange is a very common laboratory indicator used to distinguish between acids and bases through its colour change. It gives a pale pink colour in acidic medium and pale yellow colour in basic medium. Lactic acid and hydrochloric acid will give a pale pink colour when tested with methyl orange indicator whereas sodium hydroxide and caustic soda will give a pale yellow colour.
C
Sodium hydroxide
D
Lime water
Methyl orange is a very common laboratory indicator used to distinguish between acids and bases through its colour change. It gives a pale pink colour in acidic medium and pale yellow colour in basic medium. Lactic acid and hydrochloric acid will give a pale pink colour when tested with methyl orange indicator whereas sodium hydroxide and caustic soda will give a pale yellow colour.
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