JEE Main 2022 · 25 Jun · Shift 2 · Chemistry Q81

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ChemistryInteger+4 / -1Question 81 of 90

A protein 'A' contains 0.30% of glycine (molecular weight 75). The minimum molar mass of the protein 'A' is ______ $\times10^3$ g mol $^{-1}$ [nearest integer]

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Answer and worked solution

Official answer: 25

At least one glycine (75 g) per molecule: $M_{\min}=\dfrac{75}{0.0030}=25000$ g mol $^{-1}=25\times10^3$ .

Answer: 25

Topics:Mole concept Amino acids and proteins

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JEE Main 2022 · 25 Jun · Shift 2, Chemistry question 81