Which one of the following elements cannot be detected by "Lassaigne`s test"?

examrobotsa's picture
Q: (CDS-I/2019)
Which one of the following elements cannot be detected by "Lassaigne's test"?

question_subject: 

Science

question_exam: 

CDS-I

stats: 

0,1,21,8,8,5,1

keywords: 

{'lassaigne': [0, 0, 0, 1], 'elements': [0, 0, 2, 5], 'test': [2, 2, 8, 3]}