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Which of the following is/are true with respect to Lassaigne’s test
i) Used to detect N,S,P,X present in organic compound
ii) The organic compound is fused with Na metal to convert the bonds in organic compound in to covalent form
iii) Nitrogen is converted to sodium cyanide $Na - C + N \overset{Δ}{\to} NaCN$

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i , ii

i , ii ,iii

i , iii

ii , iii

answer is C.

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Detailed Solution

1) lassaignes test is used to detect N,S,P, halogens
2) In lassaignes test ‘N’ converts to NaCN
In lassaignes test ‘S’ converts to Na₂ S
In lassaignes test X converts to NaX
3) In lassaignes test covalent bonds converts to Ionic form

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