285221 1.78 g of an optically active L-amino acid (A) is treated with\(\mathrm{NaNO}_2 / \mathrm{HCl}\) at \(0^{\circ} \mathrm{C} .448 \mathrm{~cm}^3\) of nitrogen gas at STP is evolved. A sample of protein has \(0.25 \%\) of this amino acid by mass. The molar mass of the protein is

285222 \(50 \mathrm{~cm}^3\) of \(0.04 \mathrm{M} \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) in acidic medium oxidizes a sample of \(\mathrm{H}_2 \mathrm{~S}\) gas to sulphur. Volume of 0.3 M \(\mathrm{KMnO}_4\) required to oxidize the same amount of \(\mathrm{H}_2 \mathrm{~S}\) gas to sulphur, in acidic medium is

285221 1.78 g of an optically active L-amino acid (A) is treated with\(\mathrm{NaNO}_2 / \mathrm{HCl}\) at \(0^{\circ} \mathrm{C} .448 \mathrm{~cm}^3\) of nitrogen gas at STP is evolved. A sample of protein has \(0.25 \%\) of this amino acid by mass. The molar mass of the protein is

285222 \(50 \mathrm{~cm}^3\) of \(0.04 \mathrm{M} \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) in acidic medium oxidizes a sample of \(\mathrm{H}_2 \mathrm{~S}\) gas to sulphur. Volume of 0.3 M \(\mathrm{KMnO}_4\) required to oxidize the same amount of \(\mathrm{H}_2 \mathrm{~S}\) gas to sulphur, in acidic medium is