Meena purchaseda paket of arhar dal from a store. For testing the presence of metanil yellow in dal she should use:
[a]NaCl [b]iodine solution [c]HCl [d]safranin
The correct option is (c). Dal is added to water along with few drops of conc. hydrochloric acid.
The appearance of pink colour confirms the presence of metanil yellow in dal (pulses)
The appearance of pink colour confirms the presence of metanil yellow in dal (pulses)