The four methods of testing the presence of metanil yellow in a given sample of arhar dal are given below. The correct method is :
(a) 5 g of dal is added to 5 g metanil yellow.
(b) 5 g of dal is added to 5 ml of water along with 2 drops of conc. hydrochloric acid.
(c) 5 g of boiled dal is added to 5 ml of water.
(d) 5 g of dal is added to 5 ml of dil. hydrochloric acid.
CBSE Class IX Science VSA (1 Mark)
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(b) 5 g of dal is added to 5 ml
of water along with 2 drops of conc. hydrochloric acid.
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