The amino acid that gives a red-blood colour | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The sodium fusion test is used to detect elements like nitrogen, sulfur, and halogens in organic compounds.When an organic compound containing bot

Vedclass · Accepted Answer

methionine

Vedclass · Answer

(C) The sodium fusion test is used to detect elements like nitrogen, sulfur, and halogens in organic compounds.When an organic compound containing both nitrogen $(N)$ and sulfur $(S)$ is fused with sodium metal, sodium thiocyanate $(NaSCN)$ is formed.$Na + C + N + S \rightarrow NaSCN$When this extract is treated with sodium nitroprusside $(Na_2[Fe(CN)_5NO])$, the thiocyanate ion $(SCN^-)$ reacts to form a blood-red colored complex, ferric thiocyanate ($Fe(SCN)_3$ or $[Fe(SCN)(H_2O)_5]^{2+}$).Among the given amino acids, methionine is the only one that contains a sulfur atom in its structure.Therefore, methionine is the amino acid that will give a positive test for sulfur, resulting in a blood-red color.

The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is

Similar Questions

Proteins when heated with conc. $HNO_3$ give a yellow colour. This is

Which among the following is a source of wool?

Find the isoelectric point $(pI)$ of the given amino acid.
$CH_3-CH(NH_3^+)-CO_2H, \ pK_a = 2.2, \ pK_b = 4.4$

Which among the following compounds contains both,amino and carboxyl groups in it?

Which one of the following statements is not correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module