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Gun-cotton is
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Gun-cotton is a nitrocellulose or cellulose trinitrate which is used in explosive and as a binder for solid rocket propellant.
Which of the following monosaccharide is a pentose
Arabinose is an aldopentose HOCH2 - (CHOH)3 - CHO
Which of the following is a carbohydrate
Inulin is a carbohydrate which is stored in “Roots of Dahliya”.
General formula for carbohydrates is
Carbohydrates are hydrates of carbon. Their general formula is Cx(H2O)y.
Glucose gives silver mirror with Tollen's reagent. It shows the presence of
Glucose + Tollen’s reagent → Gluconic acid + Ag-mirror.
A certain compound gives negative test with ninhydrin and positive test with Benedict's solution. The compound is
Protein gives blue-violet colour with ninhydrin
(2, 2-dihydroxyindane-1, 3-diene)
Carbohydrates gives brown red ppt. with benedict’s solution (Alk. CuSO4 + Citrate ions)
Sugar can be tested in urine by
Glucose + Benedict's solution → Red colour (Cu2O).
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