You are testing for nitrate reduction. The first test, which involves adding Trommsdorff reagent and dilute H2SO4, produces a blue color. Is the test positive or negative for nitrate reduction? a. positive
b. negative

The correct answer is - option a. positive.

Explanation:

Nittarte reduction is the test for the determinantion of the production of nitrate reductase enzyme through various test. One of the test is trommsdroff test.

This test involves trommsdroff reagent and dilute sulfuric acid that produce blue color if the reduction occurs and reductase present. This color is formed due to the conversion of ammonia to nitrate.

The correct answer is - option a. positive.

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explanation: