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Why vinegar {acitic acid} change colour …

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Why vinegar {acitic acid} change colour of onion when we dip onion in it?

    • Posted by Harman Mehdwar 6 years, 10 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Meghna Thapar 5 years, 4 months ago

    This is a chemical change because when we dip onion in vinegar it changes only coloure not its shape. Vinegar is an acid, so when you poured the indicator solution into the second flask, it turned red. Ammonia is a base, so when you mixed the acidic vinegar solution with ammonia, it raised the pH and the water turned blue.

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