Question

benzidine test gives blue colour in the presence of​

Answer 1

Answer:

Then either the examining finger of a rectal glove or a clean orange-stick dipped in a faecal specimen is smeared on white filter-paper, and a little of the benzidine solution is poured over the smear. A blue colour appears if the faeces contain blood.

Answer 2

HEY

Answer:

Then either the examining finger of a rectal glove or a clean orange-stick dipped in a faecal specimen is smeared on white filter-paper, and a little of the benzidine solution is poured over the smear. A blue colour appears if the faeces contain blood.

When treated with benzidine in glacial acetic acid both gave a dark blue/green colour.

Hope this helps

Have a good day!