Neomycin is an aminoglycoside antibiotic found in many topical medications such as creams, ointments, and eyedrops.
The increase in mass (in g) when one mole of Neomycin is treated with excess of acetic anhydride is

Question

Neomycin is an aminoglycoside antibiotic found in many topical medications such as creams, ointments, and eyedrops.

The increase in mass (in g) when one mole of Neomycin is treated with excess of acetic anhydride is

TestHub · Accepted Answer

Both OH and NH 2 ​ groups get acetylated. For every H replaced, there will be a net gain of 42 g , per group. As there are 13 groups which can react with acetic anhydride, the net gain in weight = 13 × 42 = 546

Chemistry - AMINES Question with Solution | TestHub

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JEE Advanced (2028)