For testing halogens in an organic compound with solution, sodium extract (Lassaigne’s test) is acidified with dilute . What will happen if a student acidifies the extract with dilute in place of dilute ?

Name: For testing halogens in an organic compound with AgNO 3 solution, sodium extract (Lassaigne’s test) is acidified with dilute HNO 3
Uploaded: Sun, 2020-08-16 20:36
Description: For testing halogens in an organic compound with AgNO 3 solution, sodium extract (Lassaigne’s test) is acidified with dilute HNO 3

For testing halogens in an organic compound with AgNO 3 solution, sodium extract (Lassaigne’s test) is acidified with dilute HNO 3

#Organic chemistry- some basic principles and techniques
#Chemistry
#Exemplar Chemistry for Class 11
#NCERT

#1.2
#8.9
#Match the column
#Assertion Reason type
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For testing halogens in an organic compound with $AgNO_{3}$ solution, sodium extract (Lassaigne’s test) is acidified with dilute $HNO_{3}$ . What will happen if a student acidifies the extract with dilute $H_{2}SO_{4}$ in place of dilute $HNO_{3}$ ?

Answers (1)

Elements like nitrogen, halogens, sulphur and phosphorous present in organic compounds converted into ions by fusing with sodium metal which is then plucked in distilled water getting sodium extract. On adding diluted $H_{2}SO_{4}$ in place of diluted HNO₃ for testing halogens by $AgNO_{3}$ , a white precipitate of $Ag_2SO_{4}$ is formed. This will lead to the wrong result of chloride. Hence, only $HNO_{3}$ is used instead of diluted $H_{2}SO_{4}$ .

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For testing halogens in an organic compound with solution, sodium extract (Lassaigne’s test) is acidified with dilute . What will happen if a student acidifies the extract with dilute in place of dilute ?

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For testing halogens in an organic compound with $AgNO_{3}$ solution, sodium extract (Lassaigne’s test) is acidified with dilute $HNO_{3}$ . What will happen if a student acidifies the extract with dilute $H_{2}SO_{4}$ in place of dilute $HNO_{3}$ ?