Adulterated toor dal which is bright yellow in color is due to the presence of which of the following substance?

Beta carotene

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Metanil yellow

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Anthocyanin

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Propylene glycol

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Solution

The correct option is B Metanil yellow
Metanil yellow imparts a yellow color or tinge to the food sample it is used to adulterate. It's presence can be detected by adding a few drops of HCl. A deep pink color shows its presence. It is used in the adulteration of toor dal and turmeric.
So, the correct option is 'Metanil yellow'.

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