Assertion (A): During test for nitrogen with Lassaigne's extract on adding \( \mathrm{FeCl}_{3} ...
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0Assertion (A): During test for nitrogen with Lassaigne's extract on adding \( \mathrm{FeCl}_{3} \) solution, sometimes a red precipitate is obtained.
Reason (R): Sulphur is also present.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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