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Question


Smita took a spoon of turmeric powder and made a paste by adding little water to it. She cut thin strips of a paper and applied this paste on them. After drying she put few drops of given sample solutions (i)-(iv) on these strips. What would be the changes in the colour she observed?

(i) Amla juice
(ii) Lime water
(iii) Common salt solution
(iv) Baking soda solution

811163_2a94cf069aa64a6cade05487f0edc61e.jpg

A
(i) - Yellow, (ii) - Red, (iii) - Yellow, (iv) - Red
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B
(i) - Red, (ii) - Yellow, (iii) - Yellow, (iv) - Red
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C
(i) - Red, (ii) - Red, (iii) - Yellow, (iv) - Yellow
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D
(i) - Yellow, (ii) - Yellow, (iii) - Red, (iv) - Red
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Solution

The correct option is A (i) - Yellow, (ii) - Red, (iii) - Yellow, (iv) - Red
Turmeric is yellow in acidic and neutral solutions and red in basic solution.
Sample solution Nature of solution Colour of turmeric paper
(i)Amla juiceAcidicYellow
(ii)Lime waterBasicRed
(iii) Common salt solutionNeutralYellow
(iv) Baking soda solutionBasicRed

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