It tests for unsaturation. If the substance being tested is saturated, it will not be reactive; but if it is unsaturated there will be a reaction.
if it is a primary, secondary or tertiary alcohol
an exothermic reaction
Specimen unsuitable for analysis
could indicate anemia
If you're using iodine, a negative test will be the color of the iodine solution, which should be a brownish color.
Phenols give a positive test.
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baeyers test is test for unsaturation gives MnO2 brown ppt withe -enesand -ynes
A negative Benedict's test would indicate that there isn't any presence of reducing sugars in that particular substance.
What did the two grooves on the floor indicate
It depends on what that pregnancy test uses to indicate pregnancy. Read the directions carefully to see what they use to indicate a positive or negative pregnancy test.
if it is a primary, secondary or tertiary alcohol
an exothermic reaction
The Benedict test is useful for monosaccharides and disaccharides.
Specimen unsuitable for analysis
The iodine test will detect the presence of starch in the endosperm.
The Presence-Absence (P-A) test is a presumptive detection for coliforms.