SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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State the changes in the methyl orange indicator inside the conical flask containing potassium hydroxide solution, KOH when it reaches end point.
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Yellow to red
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Yellow to orange
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Red to yellow
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Pink to colorless
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Explanation:
Detailed explanation-1: -Methyl orange is orange in colour. It is used in laboratories to determine if a solution is acidic or basic. In acidic medium, it gives red colour and in basic medium, it gives yellow colour.
Detailed explanation-2: -In this case, hydrochloric acid is taken in the burette and sodium carbonate solution in the conical flask. Methyl orange is used as an indicator. The colour change at the end point will be from yellow to pinkish-red.
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